I have diagnosed ADHD and I agree largely with the person you are responding to.
The claim is not that ADHD is not a set of people with real psychiatric disorders, but it is a loose umbrella for what are actually disparate problems.
I recently learned that my symptoms, to a large extent, can be explained more accurately as POTS or something adjacent, and the meds I guided my psychiatrist towards were far more helpful than the stimulants I was being prescribed. This was a combination of me, reddit, and later LLMs arriving at me-specific diagnoses that go beyond clinical guideline regimes.
The claim is not that ADHD is not a set of people with real psychiatric disorders, but it is a loose umbrella for what are actually disparate problems.
I recently learned that my symptoms, to a large extent, can be explained more accurately as POTS or something adjacent, and the meds I guided my psychiatrist towards were far more helpful than the stimulants I was being prescribed. This was a combination of me, reddit, and later LLMs arriving at me-specific diagnoses that go beyond clinical guideline regimes.