Do your fears stop you from doing things that make you happy? If so get help. I'm not saying drugs nessicarly but therapy does wonders. Even just learning how to breath can make life more fun.

Might wanna get tested sound like you have some social anxiety. Still it's not a problem until it starts interfering with your life. My personal limitus test is can I go into a store and buy a prod...

Just your ear drum being flexed. Should happen whenever you try to move your ears too.