Ugh...the hurlin' has returned

What is the freakin' problem? I have been nauseated since Sunday now (if you're counting that's going on FIVE days now). Yesterday I was still feeling a little unsettled but managed to keep my soup and crackers down, so I figured I was on the road to recovery. Enter this morning. Woke up feeling like crap, threw up before work, wanted to on the way to work (didn't), threw up after I got to work. My eyes are all glassy and I'm pretty sure I look like hell. And, no, for the MILLIONTH time, I am not pregnant, so stop asking. All you medical people out there-any explanations for my icky symptoms? Would a virus stick around this long? I am soooooo completely over this.......