At the risk of sounding like an Emo freakazoid....
Have you ever felt so happy, but so sad at the same time? Or so complete yet incomplete? I think I'm the most emotional person I know and it sucks. One minor thing can shift me from being the happiest girl on the planet to wanting to curl up in a hole and not be bothered by anyone. I swear I've gotten me and my dad's emotions because he is prob the most mentally stable person I know. He doesn't let anything ever bother him or get him down.