I don't know what's wrong with me. When I'm with my friends, they know me as the happy one, always joke around, cheerful, impossible to cry. But when I'm alone, suddenly I changed into this super doom and gloom type, cry without any reason, well basically just feel sad about my shitty life. I know that my friends don't even know me, the real me. When I need to talk, I just stare at the mirror, and talk to myself. Then I get better, forget about my 'apocalypse', and this cycle continues. I wonder, is this normal or should i get help?