I'm sixteen years old, and I'm beginning to suspect that I might have Asperger's. I have obsessions over things that I then talk about constantly, even when I know my friends are getting annoyed. I tend to talk much more loudly than I mean to and people have to tell me I'm yelling. I say things that are just socially weird without meaning to. I constantly feel like I'm having to work really hard at being "normal", but I'm afraid that if I don't, I won't have any friends. I just don't know. I also suffer from depression, and I've been on anti-depressants for about three years.
Even though I feel like I might have mild AS, I don't know how or if to mention it to my parents. My older sister (20 y/o) was diagnosed with high-functioning autism when she was five years old, and I don't want anyone to think I'm just look for attention or trying to come up with an excuse for being so weird. What should I do???