Wow, man you remind me of how I was a couple of years back in university!
I haven't ill exactly, but I haven't been normal lately. I think it's the lack of sunlight, but I've been steadily gaining weight, even though I'm not eating much, thirsty all the time, and constantly lethargic. I force myself to go out for walks now and then. I can't wait to go back and run on the beach!