Why is it everytime I go into a store by myself I get real sweaty, and the inside of my body feels like im going to explode kind of..like I cant breath almost...someone tell me what this is? Also help me find a way to fix this? I dont get it, I try to tell myself there is nothing to be afraid about or nervious about but it dont help, I just get the feeling like everyone is looking at me..HELP>..seriously..