Am I autistic? ADHD in adulthood

This guide is psychoeducational content. It replaces neither a consultation nor a diagnosis, and no questionnaire can diagnose autism or ADHD: only a trained professional can, after a thorough interview. If you are struggling, if you are thinking about dying, do not wait for a label: speak to your doctor, the same day. Allow thirty-five minutes to read.

1. Before you start

You came across a video. Or a friend said: "you wouldn't be a bit ADHD, would you?". Or your child has just been diagnosed and, reading the report, you had the impression of reading your own biography.

Then you took online tests, read accounts, and you no longer know what to think. That is the most common starting point, and there is nothing ridiculous about it: a substantial share of the adults concerned were never picked up in childhood.

Three things, straight away.

Recognising yourself in a description is not a diagnosis. Difficulties with attention, social tiredness, sensitivity to noise, procrastination exist in almost everyone to some degree. What makes the difference is not the presence of traits, but their intensity, how long they have been there, their presence across several areas of life, and the real impairment they cause.

These two conditions are not passing illnesses. They are developmental particularities, present since childhood, even when nobody saw them. You do not catch them at thirty.

Asking the question is useful even if the answer is no. Many people arrive with "am I autistic?" and leave with the identification of an anxiety disorder, a depression, a sleep disorder or burnout — that is, with something that can be treated.

Who this guide is for

You, if you have been wondering for months whether the way you function has a name.

You, if your child has been diagnosed and that has raised questions about yourself.

You, if you already have a diagnosis and want to understand what it implies, or does not imply.

What this guide is not

It is not a diagnostic tool. The questionnaire it offers points you somewhere; it does not conclude.

It is not a reproduction of the official criteria: those of the DSM-5 and the ICD-11 are reworded here in our own terms, never copied out.

Nor is it a position on whether autism is a disorder or a difference. This guide uses medical vocabulary because it deals with assessment and care, and it respects the fact that many of the people concerned prefer to speak of functioning rather than deficit.

How it is built

Part I — Understanding (sections 2 to 6). Why these two questions arrive together, what adult ADHD is, what adult autism is, what brings them together and separates them, and why so many diagnoses come late.

Part II — Ruling out and checking (sections 7 to 11). What resembles these conditions without being them, what often accompanies them, the orientation questionnaire, what a questionnaire is worth, and how an assessment works.

Part III — Afterwards (sections 12 to 18). What a diagnosis changes, what helps for ADHD, what helps for autism, work, relationships, treatments, and self-diagnosis in the age of social media.

Part IV — Markers (sections 19 to 22). When to seek help without waiting, frequently asked questions, the essentials and the sources.

2. Why these two questions arrive together

It is no accident that this guide covers both.

They often coexist. Current classifications explicitly recognise that the same person can have an autism spectrum disorder and an attention deficit disorder. Until 2013, the dual diagnosis was excluded by convention; that exclusion was lifted, and the studies that followed showed that co-occurrence is common.

They present the same way in adulthood. In both cases, what brings someone to a consultation is almost never the underlying difficulty: it is exhaustion, anxiety, depression, relationships that fail, a career that stalls, or a diagnosed child acting as a mirror.

They share consequences. Fatigue, a sense of being slightly off to the side, the impression of having had to make constant effort to do what others do without thinking.

They are easily confused. Not following a meeting can come from attention drifting off, or from sensory and social overload. The visible result is the same; the mechanism is not, and neither is the answer.

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