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Autism and ADHD: understanding overlapping experiences

Updated
3 min read

Autism and ADHD are different conditions, and a person can have both. Difficulties with attention, conversation, changes or everyday tasks can look similar from the outside. An observation such as “I struggle in meetings” does not identify the reason by itself.

The NHS provides separate guidance on adult ADHD and signs of autism in adults. An assessment considers history and impact, not just how many online examples seem familiar.

Describe the situation in more detail

Instead of trying to sort every experience into an autism or ADHD column, describe what happens. In a meeting, do several voices become difficult to follow? Do instructions disappear from memory? Is the purpose unclear? Does an unexpected change require time to process?

More than one answer may fit. The same outward behaviour can occur in different circumstances, and you do not have to discover the underlying mechanism alone.

A useful note has four parts: the situation, the difficulty, its practical effect and anything that helps. For example: “When a task is explained verbally during a busy meeting, I miss steps. A written summary helps me start correctly.”

Prepare for an assessment conversation

Bring a small set of examples from work or education, home and relationships. Include when you first remember the difficulties and how they have changed. If you have relevant school reports or somebody who knows your history, ask the service what would be useful to bring.

You might say: “I recognise experiences associated with both autism and ADHD. Could we discuss how an assessment considers overlap and other possible explanations?”

Avoid tailoring every answer to what you think will secure a diagnosis. Describe both strengths and difficulties, including days when a supportive environment makes things easier.

Ask for help with the immediate barrier

You do not need to label each difficulty before making an ordinary communication request.

For instructions: “Could you send the steps in writing so I can refer back to them?”

For a change: “Please tell me what has changed and what I can still rely on.”

For processing time: “I need a moment before I answer. Can you come back to me?”

If one change helps, that is useful information. It is not a diagnostic test. Keep the adjustment because it serves a need, rather than using it to prove a label.

What online support can and cannot do

Personal accounts can give you language for experiences, but they cannot establish your diagnosis or predict treatment. Discuss distressing, persistent or new difficulties with an appropriate professional.

Our communication preparation guide can help organise questions. tonen offers wording support, not an autism or ADHD assessment, and it should not replace support that is tailored to your health and daily life.

Frequently asked questions

Yes. A qualified assessment can consider both and other explanations for the experiences described.