Believe me so many people are self-diagnosed with Autism to the point that it's a problem! Luckily I wasn't self diagnosed my parents told me I was autistic. I found out I was diagnosed at a young age and I'm in a class where every classmate of mine is autistic.
Aware of it since I was 12. but I rarely never post anything OTHER than my special interest.
(This comment was written by a real autistic person, clinically diagnosed and not a person who diagnosed themselves because why would you diagnose yourself with a disorder you don't have?)