Was Elliot Rodger REALLY autistic?

I know from my own childhood experiences with autism are very different from his. I'd spend my recesses jump roping back and forth singing to myself and not talking to anyone. From Elliot's accounts, he seemed to get along very well with other kids his age when he was younger. I know that all people with autism are different, but I personally do not believe he was autistic for a number of reasons. One is that he only became more "withdrawn" as he became a teenager, which a lot of teenagers do as they discover themselves and spend hours on the Internet. I personally believe he was a narcissist and psychotic, but have been questioning lately whether he was truly a narcissist or just trying to make himself feel better by saying things like "look at me, I'm gorgeous".

Well considering he was diagnosed with it, I would say yes he was.