I totally understand how you feel. I get the same way periodically. I'm actually kind of in a funk like that right now. But I'm pretty sure that's just end of semester stuff. At least you had opportunities to get away from everyone without seeming antisocial. I always hate when I'm trying to go off by myself and people tell me that I'm being anti-social or even mean-spirited because I don't want to talk to people and I tell them as much.