Do you think I suffer from anxiety?

This is a little rant please help me out I'm a teenager and when I go out in public and walk I'm always looking at the floor. I don't walk straight, super insecure sometimes and then other times I'm feeling myself(no joke) when people talk to me I feel like crying for some reason I just feel over whelmed a lot by just talking. When there's a lot of people close to me I feel suffocated. I think I have anxiety but I'm not sure what do you think :(