I get anxiety whenever people stare at me, what about you?
When they stare it makes me a little uncomfortable, but I wouldn't say anxious. I don't want to overreact to the situation, you know?
So if I get super anxious around people, does it mean I have an anxiety disorder? 
Hmm, not necessarily. I would say whether you have a *disorder* ultimately depends on what kinds of symptoms you experience.
Well, what are the symptoms of an anxiety disorder?
Depends on the disorder, really. Generally though, fast heart rate, shakiness, fear or tension of people or one's surroundings, that kind of thing.