Am I Just Paranoid?

I feel like i've just got alot of paranoid issues or confidence issues, but ever since I saw that movie a beautiful mind it completely freaked me out HAHA. So I guess I just need to make sure what I'm feeling is just a fear.

The closest thing i've ever really had to hearing a voice was when i was nervous about something I'd just heard my own voice saying "why did you do that ugggh you're so stupid." or something like that, I don't know if you'd describe that as hearing voices but that's the closest thing I've had to it.

I have some confidence issues, and sometimes whenever I see people whisper that are near me or I hear someone behind me laugh I worry that they're laughing at me or talking about me, but most of the time I can just shrug it off and ignore it.

I always feel like i'm ugly all the time, and I'll say it in front of people alot because I want them to tell me otherwise but when they do I don't believe it anyway. I also often worry that i'm getting on someone's nerves or that people are going to talk behind my back.

Alot of people tell me this just sounds like a severe confidence problem, but I don't know. Schizophrenia is one of my biggest fears, I guess I just wanted to hear it from somebody on here.

Can anybody tell me what this sounds like?