I don't know why, i just end up being sad without a reason. This usually happens to me. Sometimes i just want to be alone, with no one to talk to. Just myself. I end up not giving a shit about anything around me, about the people talking to me, people who are stitting next to me, just people. Then later on, my mood starts to lighten up , i slowly end up being happy and jolly again. Are this mood swings? Or am i just bipolar. Screw this, i feel messed up.