Sorry to hear you're struggling so. It sounds as if a trip to the GI doc is a good idea. The problem is that it's not always easy to get right in, and until then, you'll be coping with some health issues that are really disturbing to you.
It's important to try to get some nutrition, so you'll want to find some comfort food that your stomach can tolerate. If you're not eating much, that is enough to stop your bowels from moving. Be sure to drink fluids. If you're nauseous, weak decaf tea might be tolerable. Sipping water all day will help. Dehydration will also wreak havoc with your GI tract.
Try not to worry--it'll just make your situation (and symptoms) worse. Keep your mind as busy as possible on other things.
Best of luck with this, Wonder.
Keep us posted!