Could This Be ADHD?

Written by Neill Hughes, BACP-Accredited and Registered Therapist, ISST-Certified Schema Therapist and ADHD Junction Clinical Editor. Last reviewed September 2026.

People are often curious about more ordinary things. Why do I feel drained at the end of the day? Why can I sometimes do really difficult things but struggle with simple ones? Why am I always playing catch-up? Why do I feel understimulated or overstimulated? Why do ordinary things feel annoying and difficult?

Often, somewhat complicated systems have to be planned and put in place to keep everyday life running. People may become very good at managing those systems, but keeping them going can take much more effort than other people realise. For some, this can have been going on for years.

ADHD can make itself known in a variety of ways. Here, I am looking at some patterns that you may feel are worth discussing further with a medical professional. It is definitely not a substitute for having a professional assessment so please bear that in mind. Even if you relate to something you read here, it does not mean that you have ADHD. However, if the same pattern becomes visible again and again, it may be useful to make a note of it and bring it to the attention of your GP or another appropriate professional.

There is a lot of material on this site and it’s designed so you can navigate through the parts not relevant to you. Give it a go, especially the Interactive Reflection Record, and see if it helps anything make more sense.

More than difficulty paying attention

ADHD is more complex than being unable to pay attention. Its core features involve inattention, hyperactivity and impulsivity, but these may not all be equally visible in every person.

Someone may have no problem concentrating on an interesting or complicated task but find a routine or apparently simple task extremely difficult. A person may be unproductive for a long period and then remarkably productive as a deadline approaches. They may have a clear plan of action and still be unable to carry it out.

This is not simply a question of willpower or motivation. Difficulties may involve starting and stopping activities, maintaining attention, organising tasks, managing impulses or judging time. What matters is not an isolated lapse but a persistent pattern, the situations in which it appears and the effect it has on everyday life.

Patterns that can occur in adults with ADHD

Identifying ADHD is never as simple as spotting a specific set of symptoms. In fact, very few cases are identical.

Patterns commonly recognised by people who have ADHD include:

• repeatedly losing track of time
• forgetting appointments
• forgetting to pass on messages
• putting off chores you intend to do or forgetting everyday tasks
• difficulty organising possessions and misplacing them
• trouble keeping on top of paperwork and responsibilities
• finding it disproportionately hard to begin tasks that feel dull, boring or unrewarding
• difficulty staying focused on a task, even if you want to
• starting other tasks with enthusiasm but struggling to finish them
• being easily distracted by sounds, events, other people or one’s own thoughts
• repeatedly misjudging how long something will take
• not acting until an approaching deadline or crisis
• interrupting during conversations as a thought comes to mind
• repeatedly missing what someone has said, even when trying to listen
• finding it hard to manage frustration at times
• speaking before you intended to or before you considered if what you said was appropriate
• acting before thinking or making quick decisions without considering the consequences
• restlessness or difficulty winding down or relaxing

Many people without ADHD do experience at least some of these things from time to time. In an ADHD assessment, the clinician looks for patterns, symptoms that began in childhood, have persisted over time, occur in more than one important setting and cause meaningful difficulty or impairment. They will also consider other possible explanations and any conditions that may be present alongside ADHD.

The Royal College of Psychiatrists explains this in more detail.

“But I can concentrate brilliantly!”

Being unable to concentrate at all is not a defining feature of ADHD.

In fact, some people with ADHD report the ability to "hyperfocus". People who describe hyperfocus often associate it with something that is particularly interesting or engaging.

While hyperfocus is not a formal symptom of ADHD, it is something that is reported by a number of people with ADHD. A person may become so engrossed in a book, a TV show, a game or other activity that they lose track of time, and even fail to hear important things that people are saying to them. They can also have extreme difficulty shifting their attention away, even to take a break or to do important things like eat.

So for an ADHD assessor or diagnostician, more needs to be asked than just whether a person can concentrate or not. A person with ADHD may be extremely focused when doing things they want to, but may find it difficult to break away to turn their attention to mundane but necessary activities.

Some adults describe having a rapid stream of thoughts or finding themselves distracted by their own thinking. This may help explain why somebody can appear not to be listening even when they are trying to. Mind-wandering can be worth mentioning during an assessment, although it does not establish ADHD by itself.

However, the person’s surroundings can still make a difference. Making sure the workplace is quiet, writing down instructions, getting help with planning or limiting the amount of competing demands may reduce the challenge for some people, although no single set of adjustments works for everyone.

Restlessness and sensory experience

In an adult, what’s known as hyperactivity may not present in the same way as it does in a child. For instance, an adult may fidget or move frequently, while the restlessness itself may sometimes be experienced internally. In some cases, people might feel uncomfortable when nothing occupies them, or they might find it hard to settle in certain social situations.

Some people with ADHD report being unusually sensitive to noise, touch or busy surroundings, whereas others seek movement or stimulation. Some also describe not noticing hunger, tiredness or other bodily signals until they become difficult to ignore.

These experiences are not part of the core diagnostic criteria for ADHD, and can indeed have other explanations. Research into sensory processing and body awareness in ADHD is still developing, but if they are a noticeable part of everyday life, they may be worth mentioning during an assessment.

Why ADHD may be overlooked in girls and women

ADHD has historically been recognised and diagnosed more often in boys and men.

There are likely to be several reasons for this, but one is that girls and women may show symptoms that are less disruptive or less obvious to other people. A child who repeatedly leaves their seat, interrupts or behaves in a very restless way is likely to attract attention. Someone who is forgetful, daydreams, becomes disorganised or quietly struggles to keep up may be much easier to overlook.

This does not mean that girls and women cannot have hyperactive or impulsive symptoms. They can. But research and clinical guidance suggest that ADHD may sometimes be less outwardly obvious in females, while inattentive difficulties and internal struggles can be missed. NICE specifically warns that ADHD is under-recognised in girls and women.

Some people also learn ways of compensating for their difficulties. They may become heavily reliant on reminders, calendars, lists or routines, arrive far earlier than necessary because they are frightened of being late, or develop very high standards as a way of preventing mistakes. For some people, fear of criticism or letting others down may add to this pressure, something we return to below when discussing rejection sensitivity.

From the outside this can give the impression that the person is highly organised and coping well.

What may be less visible is how much effort is going into maintaining that appearance. Some people describe making a big effort to conceal or compensate for their difficulties at school, work or when socialising, and then feeling drained or exhausted afterwards. The amount of effort it takes may also vary depending on where they are and how safe or comfortable they feel.

This is one reason why an assessment should look beyond how organised, calm or successful somebody appears and ask how much work is going on underneath.

Emotional regulation

Some people with ADHD describe instances where emotions come on quickly and feel very strong or intense, or where frustration may rise fast. Criticism they receive can stay on their mind for hours and a relatively small setback in something they are attempting may sometimes produce a reaction that feels much larger at the time but then passes fairly quickly.

"Emotional dysregulation" is commonly reported in ADHD. It is not one of the core diagnostic symptom groups, though, and it is known to occur in many other conditions as well. But again, in isolation, it doesn’t establish ADHD. Sitting alongside a much longer history of problems with attention, impulsivity or hyperactivity, however, it may still be useful information.

Rejection sensitivity and RSD

You may also have come across the term rejection sensitive dysphoria, usually shortened to RSD.

It is used to describe an unusually intense emotional response to rejection, criticism or failure, including rejection which a person fears or believes is going to happen. It is important to be careful with the term though. RSD is not a separate formal diagnosis, nor is it one of the diagnostic criteria for ADHD, and research specifically into RSD is still limited.

Rejection sensitivity itself has been studied more widely, including in people with ADHD.

For some people, its effect on life can be considerable. A small 2026 study looking specifically at the lived experience of rejection sensitivity in people with ADHD found participants describing withdrawal, masking, anxiety, misery and strong physical sensations. Some delayed or failed to submit university work because of the possibility of criticism, and one participant described not applying for career opportunities because of the fear of rejection.

That was a very small study involving only five university students, so it cannot tell us how common these experiences are among people with ADHD. It does, however, illustrate how fear of rejection can sometimes affect somebody before any rejection has actually happened.

In everyday life this might show itself in other ways too. Someone may procrastinate over something that is going to be judged, become a people-pleaser, hide or suppress emotions, or set standards so high that it feels safer only to attempt things they believe they can do exceptionally well. Sometimes opportunities are avoided altogether because failing, being criticised or simply being told “no” feels too difficult to risk.

From a schema-therapy perspective, some of those patterns may overlap with things such as approval-seeking, emotional inhibition or unrelenting standards. That does not mean those schemas are caused by ADHD or prove somebody has RSD. Similar patterns can arise for many different reasons.

What matters is the effect they are having. If fear of rejection or criticism has repeatedly stopped somebody applying for a job, submitting work, asking for help, taking a chance, expressing how they really feel or doing something they would otherwise have wanted to do, it is worth talking about.

The point isn't necessarily to acquire another label. It is to understand the pattern and what it may have been costing the person.

ADHD has a developmental history

An ADHD assessment takes a very broad look at what has happened in the past and what is happening now. ADHD is a neurodevelopmental condition, so an assessor will usually look for signs that the relevant difficulties go back into childhood or earlier development, although they may not have been recognised as ADHD at the time.

Old school reports can help, but not everybody has them. Records get lost. Parents may no longer be available. People's memories of childhood are not always complete.

An assessor may ask about school, homework, friendships, organisation, attention and behaviour. They may also use information from somebody who knew the person when they were younger, if that information is available.

There isn't one document that proves or disproves ADHD. The assessor is trying to make sense of the developmental history from the evidence that exists.

How much does it affect everyday life?

A lot of people recognise individual ADHD-like characteristics in themselves.

That is not the same thing as having ADHD.

An assessor will want to know what actually happens in daily life and what comes from it.

Perhaps work repeatedly gets left until the last possible moment. Bills are forgotten despite reminders. Coursework is started too late. Relationships are affected by interruptions, forgotten arrangements or impulsive decisions. Someone may cope well in a demanding job and still find running their household extraordinarily difficult.

The difficulties should also show up in relevant parts of life rather than in one unusual situation only.

So instead of asking simply, “Do I do this?”, it can be more useful to ask:

How often does it happen? When did it start? Where else does it happen? What problems has it caused?

Those questions usually tell an assessor much more.

Other conditions can look similar

There are many reasons why somebody may have poor concentration. Anxiety, depression, trauma, poor sleep, substance use and other mental or physical-health conditions can all affect attention, memory, motivation or restlessness, and a person can have ADHD and another condition at the same time.

This is why any clinical assessment has to go beyond an ADHD symptom checklist. The clinician needs to gather enough information to consider whether something else explains the difficulties better, whether more than one condition may be present, and whether the person's history supports ADHD.

A questionnaire can be useful but it cannot generally make that judgement on its own.

When might an assessment be worth considering?

Losing your keys occasionally does not mean you have ADHD. Neither does recognising yourself in a thirty-second online video, unfortunately for some perhaps.

It becomes more worth exploring when the same kinds of problems have been happening for years and are interfering with ordinary life.

You might ask yourself things like:

• Were versions of these difficulties present when I was younger?
• Do they happen in more than one part of my life?
• Do I keep experiencing the same issues even though I have tried different ways of dealing with them?
• Have I built complicated systems just to keep ordinary responsibilities manageable?
• Do other people see the result without seeing how much work went into producing it?
• Has the pattern affected work, education, relationships, money, wellbeing, home life or something else?
• Would understanding what is behind these difficulties change what I do about them?

If several of those questions bring up clear, recognisable examples, it might be worth discussing them with your GP or an appropriately qualified healthcare professional with expertise in ADHD.

What can an assessment tell you?

An assessment may support an ADHD diagnosis, or it may point to another explanation. An assessment might also find more than one condition or conclude that there is not enough evidence for a diagnosis. But if there indeed isn’t enough evidence for a diagnosis, it doesn’t mean the assessment is a failure.

For someone who does have ADHD, a diagnosis can help explain patterns that may have been difficult to understand for years. It can also help with decisions about treatment, practical support and adjustments at work or in education.

For somebody who does not have ADHD, the assessment may still show what deserves further attention.

The aim is more than just to either confirm or deny ADHD because understanding what is most likely to be causing the difficulties and what might help is also very valuable.

What next?

If any of the above sounds familiar, it is usually more useful to begin with real examples than with a label.

What things actually happened? How often does the same thing happen? How long has it been going on? Does this happen elsewhere in your life? What has it got in the way of?

I would recommend writing a few examples down, or looking at our Interactive Reflection Record, which might make it a little easier. But even a handful of good examples can sometimes tell you more than a long list of traits.

After that comes the practical question: how do you get assessed, and do you use the NHS, Right to Choose or a private provider? My colleague Peter's companion guide explains the different routes and some of the questions worth asking before choosing a provider.