Let me elaborate on my point. Consider a thought experiment: If you would spend 3 months in the woods, do you think it is plausible your symptoms would disappear? If you don’t think this as being plausible (likely even) then we have to agree to disagree and that’s it. Not enough data. If you do agree that might cure you then what does it mean about your ADHD diagnosis? It means that you have ADHD in the context of the demands society puts on you and not you have ADHD, period. That should give you some perspective on what is really going on here. To pile up on the diagnosis: in the article you linked a doctor was quoted saying "You're an engineer, that's not a field that people with ADHD have any success like you in.". That’s my point. If I have an ambition to be in the top ~1% of most performing population and sometimes (even often!) I cannot keep up, I won’t conclude I need to take medications, make it become part of my identity, and accept as an excuse. Not being in top 1% all the time is not the same as requiring diagnosis and treatment.