People make in very nervous in social situations. 
Really? That's too bad. Do you have anxiety or some other condition?
Social anxiety I think. It's common I think. Nearly 90% of people report having it. 
That much be hard to deal with. Do you take medication or exercise or meditation? 
I just deal with in my own and try not to freak out.  I was told it normal and necessary emotion for effective social functioning and developmental growth.
Yes I agree, some amount it definitely normal. It's when it gets too overwhelming that it becomes an issue. How long have you had it?
I think around 10 years. Like most others I get most common anxiety when I'm around someone I'm attracted to. 
Haha aww.. have you told them you're attracted to them yet? Maybe you'll feel better after!
Anxiety disorder
Anxiety disorders are a group of mental disorders characterized by significant feelings of anxiety and fear. Anxiety is a worry about future events, and fear is a reaction to current events. These feelings may cause physical symptoms, such as a fast heart rate and shakiness. There are several anxiety disorders, including generalized anxiety disorder, specific phobia, social anxiety disorder, separation anxiety disorder, agoraphobia, panic disorder, and selective mutism. The disorder differs by what results in the symptoms. People often have more than one
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Byrnes says of his character, "Joe's been through the wringer. (…) It would be hard for people to be around him too much, I think. He's kind of a loner, because at some point he's got to have some serious demons. These people have witnessed this crazy stuff; how do you deal with it ? It's hard to be ordinary. Joe is extra ordinary [sic], he's really ordinary. I mean that in a good way."