What you describe as "severe OCD" I sometimes get - like didn't ever visit the university library for my books even once in my second attempt, because I didn't know where it was and didn't understand quickly from asking and the information given seemed inconvenient and there seemed no correct moment to go there. Since it was night school, what I missed were a couple brochures and the rest can find in the interwebs, but still. Maybe that fits under ASD, just - it all is very individual, various traits in different combinations can be diagnosed differently, ADHD too has that problem of plenty of idiots thinking it's not real and exists for lazy incoherent addictive people to get high, and BTW being lazy, incoherent and addictive is very ADHD, so why would that disqualify one ... .

So - can we please not gatekeep? I thought I don't have BAD and ASD when I was a teen, because I'm not diagnosed and it's just chaotic personality, strange spirit and emotions and hormones. 12 years later I got diagnosed with those things exactly. About ADHD I heard someone else talking too, and thought it's a little thing that passes when you grow up. Whatever.