UGH! 2 years out, Nauseous!

 I have been nauseous for two days and nothing I eat seems to help. I am down to diet sprite, crackers and jello. How can I tell of it's a bug, Irritable Bowel (no diarrhea), or something more serious. Just had all my labs done, and no fever. Good news I am losing weight, but feel yuck all day...

I bet you got a touch of food poisoning.  It is much more common then people think.  It will go away soon.  I hope you feel better.

Sounds to me like you have a bug.  Rest, drink lots of fluids and it should pass quickly.

Glad you are at least keeping liquids down!! If you don't start to improve soon, you should see your doctor. As long as you are not vomiting, or having diarrhea, your electrolytes should stay ok, and staying hydrated is the most important thing.
Hope you feel better soon.
It could be alot of things, but as my nursing instructor used to say 35 years ago, "if you hear hoofbeats, don't look for zebras."
In other words, the most likely thing would be a bug, or something you ate that is causing it, so it should be better soon, and if not, get help.

If you are worried about keeping hydrated or electrolytes, as silly as it sounds, buy some pedialyte. Cut it in half with water, but it helps!