Social phobia

I have OCD, GAD, GPD, and social anxiety, so you sound normal to me. I suggest that you seek therapy. It's not freaky,and it doesn't mean you're crazy or doomed to be messed up for all your life. It's basically just talking to someone who won't judge you and wants to help you.
Your town or city probably has a community counseling center that charges on a sliding scale - so if you're broke, sessions are only like five dollars a pop. Counselors are genuinely kind, accepting people who won't judge you for your fears or why you have them. They can both teach you how to manage your fear better, and address what causes it to make it less scary in the first place.
Good luck! Deep breaths!

Sometimes I feel that way too. It was more extreme when I was in high school. I didn't have friends and I always sat in the corners by myself, but I forced myself to come out of that. I see it as any phobia, and with any phobia you gotta face your fears no matter how hard it may be. Otherwise, it will never go away.

yes. severely

Depends on how severe the phobia is.. Does it interfere with your everyday life? Does it hold you back from accomplishments?

Well I have it and it fucking sucks. Dunno if its normal but it ruins your life.