I don't like crowds either. I think that the other people are breathing all the air... and then I hyperventilate and pass out. I was fine living in Asia, as I was taller than just about everyone, so I got to the air first. Think that is what caused the problem. I got spoiled with getting to the air first. What is it about crowds that you are afraid of? If you learn your trigger, you can learn how to get around it. For example, I stand on chairs a lot. Are you physically afraid of the people hurting you? Or is it a clausterphobia thing?
Eh, it's more of the clausterphobia thing...that and people just tend to make me nervous when they're all in a large crowd, people dancing all over the place, people stopping me to tell me that they think my shirt is cool....they all make me nervous and I feel like I want to run away.