Do I have ADHD?

No one can answer this from a description, including a clinician reading your message

ADHD is diagnosed from a detailed history taken by a clinician who can ask follow-up questions, weigh alternatives and look at how symptoms have played out over your life. A web page cannot do that, and neither can a clinician who has only read a paragraph about you. That is not evasiveness; it is the reason the diagnosis means anything. If someone offers to tell you that you have ADHD from a form or a short chat, that is a reason to look elsewhere.

What a page like this can do is show you the pattern clinicians look for, help you decide whether your experience resembles it closely enough to be worth an assessment, and explain what an assessment involves so the next step is less daunting.

The pattern clinicians look for has five parts, and all of them matter

The DSM-5-TR criteria, which Canadian clinicians use, are not a list of traits you either have or lack. They describe a pattern with several conditions attached.

• Enough symptoms. Adults need at least five of nine inattentive symptoms, such as losing things, poor sustained attention, disorganisation, avoiding effortful tasks and forgetfulness, or five of nine hyperactive-impulsive ones, such as restlessness, talking excessively, interrupting and difficulty waiting.
• Early onset. Several symptoms were present before age 12, even if nobody named them at the time.
• More than one setting. The difficulties show up at work and at home, or at school and in relationships, not only in one place you dislike.
• Real impairment. The symptoms cause problems, such as missed deadlines, conflict, financial trouble or underachievement relative to ability, rather than simply being noticeable.
• Not better explained by something else. Anxiety, depression, sleep disorders, trauma, substance use and medical conditions have been considered and do not account for the picture.

Most people recognise some of the symptoms in themselves, because inattention and restlessness are universal human experiences. The question is whether the whole pattern applies, at a severity that interferes with life, and from early on.

An ADHD quiz can tell you whether an assessment is worth booking, and nothing more

The most widely used screening tool is the Adult ADHD Self-Report Scale, developed with the World Health Organization, and its six-question short form is the basis of most reputable online quizzes. It asks how often, over the past six months, you have had trouble finishing projects, getting organised, remembering appointments, starting tasks, fidgeting and feeling driven by a motor. A high score means ADHD is plausible enough to assess properly; it is not a diagnosis, and a low score does not rule ADHD out, particularly in people who have built elaborate systems to cope.

Quizzes also generate false positives in people who are anxious, exhausted or burnt out, because those states produce the same answers. Treat a screening result as a reason to take the question seriously, not as an answer. How the tool is used in practice is covered in what is the ASRS?, and the gap between screening and diagnosis in our post on self-screening versus professional diagnosis.

Several other conditions produce exactly the same question

Clinicians see many adults who ask whether they have ADHD and turn out to have something else, or something else as well. Anxiety fills working memory with worry and looks like inattention. Depression slows thinking and drains motivation. Sleep deprivation and sleep apnea cause daytime fog. Burnout produces disorganisation and avoidance that lift when the overload lifts. Trauma keeps attention on threat. Thyroid problems, perimenopause and some medications affect concentration directly. None of these rule out ADHD, and several commonly travel with it, which is why the assessment spends as much time on them as on ADHD itself. The stress and burnout distinction in particular is explored in is it ADHD or just stress and burnout?

An assessment is reasonable when the pattern is lifelong, costly and not explained by a recent change

You do not need certainty to book an assessment; you need enough resemblance to the pattern to make the question worth settling. The signals that clinicians find most telling are a history that reaches back to school reports and childhood memories, difficulties that persist across jobs, relationships and living situations rather than attaching to one bad environment, a sense of working much harder than others for the same result, and consequences that have accumulated: debt, unfinished degrees, lost items, strained relationships, a career below your ability. If a parent, sibling or child has been diagnosed, that raises the odds further, because ADHD runs strongly in families.

If instead the difficulties began with a specific event, a new job, a bereavement, a baby, an illness, and were absent before, the first conversation belongs with your family doctor, because the likelier explanations are the ones above.

The next step is a clinical assessment, which is less involved than most people expect

An adult ADHD assessment in Canada is a structured conversation. You complete rating scales and an intake about your history, and then a clinician interviews you about each symptom area, childhood, functioning and alternative explanations, often with input from someone who knew you as a child. It can be done by a family doctor, a psychiatrist by referral, a registered psychologist, or a nurse practitioner, including online. At the end you get a clear answer either way, and if it is not ADHD, you should leave with a better idea of what it is.

Finding Focus provides online ADHD assessment and treatment for adults and teens in several Canadian provinces. After a short online intake you meet a licensed Canadian clinician by video; no referral is needed and assessments start at $399. What the service covers is described at /adhd-services/.