I was diagnosed with high functioning autism, but I'm not sure if my mental state actually has anything in common with people with severe autism. In my case, I don't have any hallucinations and the only kind of psychosis I am prone to is drug induced. I'm prone to cannabis induced psychosis, and when I was smoking it regularly years ago, I had some of the symptoms of schizophrenia (hearing voices, paranoid delusions etc.). Since I quit cannabis, those symptoms have more or less subsided completely.