Do you even KNOW what Autistic means? LOL I mean seriously. Thanks for the laugh.
I'm not a doctor or anything, but yeah, I do know what autism is and you've struck me as the Asperger's sort for a while now. The fact that you didn't have enough normal human intuition to instantly know that "Grafx" was a hip and cool (ie: not hip or cool) way to spell "graphics" is perhaps the most tell tell sign yet.
For what its worth, you do a very good job of going through the motions, in the grand scheme of things, and you've integrated yourself into internet society quite well. In places like Digital Press or GameFAQs, nobody would even know you are afflicted. Maybe soon you will start to understand the jokes on Seinfeld.