The fans are people like you, seeing as you are one, or you wouldn't be here or have a Sunset Shimmer avatar if you weren't :p
I can sort of understand the anxiety, though. I used to have absolutely crippling, and dear sweet Celestia I mean CRIPPLING
social anxiety, but I've gotten rather better, slowly, over the years.
I find myself easier around fans, though, since we share probably my favorite thing, at least, and I don't have to be afraid of what they might think of it or ponies making them uneasy. It's nice to have that common ground, yeah?