Oh, get over it, If there's no people in your block then join a club, that way you make friends, did you live in the same places as your friends from secondary school, cos I didnt, Mine lived upto 30miles away!! you can have friends and go out without living in the same halls as people.
So what, you feel unwell, I have a bitch of a cold at the moment and sore throat and headaches, I still go out though, still talk to people! some people just seem to like taking the easy route and complaining when things dont go their way, try getting off your bum and sorting yourself out!
As for not liking the uni your at and your lectures, there was an awful lot of choice when you chose where to go last year, maybe you should've given it more thought!!