After not having been to a doctor since I was 17 and my parents were taking me, my ex-wife convinced me to get a check-up. They had me fill out a bunch of forms, several of which were questions about anxiety and depression and patience and what not. The nurse does the usual vital checks, they drew some blood, then a doctor asked me a ton of questions, making notes. Leaves. Comes back 10 minutes later and says I have ADHD, Borderline Personality Disorder and he is giving me a referral to see a specialist to test if I had autism.
I never actually got to see the specialist (whole other can of worms I don’t really want to type out) so I still don’t have any diagnosis for ASD.