Constant Nausea?

[Silent_Wolf]

First: No, I am not pregnant. Wanted to get that out of the way.

On to the point:

I've been experiencing what feels like constant, permanent nausea for the past three weeks. It's worse around food - but I do not have to be eating for the nausea to kick in, it's as though just thinking about food is making me ill. Granted, I've been extremely stressed out over the past couple weeks (finals, roommate problems, personal issues), but I was able to eat just fine under other periods of high stress. I don't think it's my birth control, and I've also been eating as healthy as I can, being in college and all that (fruits, eggs, occasional meats and salads, junk food once in a blue moon with NO ramen in sight), and the only time I can recall eating anything that could make me sick is the General Tso's chicken I get from the local Chinese place once a week if I have the spare cash for it.

Any idea what this could be caused by? I'm hoping it's not me being sicky, and that it's just leftover stress hormones. x.x