I've been nauseous for three days? This has been interfering with finals, help please?

I started feeling very tired and nauseous on Sunday, threw up Sunday night into Monday morning, recovered enough for a final Monday night and go to work early this morning. I'm not feverish or anything but I've been so tired and uncomfortable that I literally can't study for my finals. I could barely get to the computer. I've tried to make myself puke a few times but it hasn't worked. My stomach hurts when I move around, so does my head. Strong smells make it worse. I have finals first thing tomorrow morning but haven't studied on account of feeling so sick and hoping today I would feel better. I'm not sure what to do. Any suggestions?