I know what you're talking about. The only reason I was hesitant to reply to the thread is because I also have OCD, so I'm never overly sure how much of my pleasure from obsessions comes from my AS and how much is from my OCD haha.

I think that at least two of my big obsessions are more in line with my AS though as they are part of my 'special interests' and whenever I partake in them it's quite difficult for me to explain the feeling of relief and comfort I get. It's kind of like the world fades away and my body feels like it's just been given a drug to heighten all of my senses. My anxiety level also drops to virtually none which is a nice change from the normal levels.

Not sure about the electrical feeling in my head though. But then I'm not great at describing things about my feelings.

P.S. I love your sig, Janeway for the win!