Oh, the lovely anxiety. I've been dealing with that myself lately - fun times.
I'm wondering if you chose to go off your meds cold turkey yourself or if it was you doctor's suggestion. I know that some of the meds in your signature (Celex, Desipramine) can cause withdrawal symptoms in some people. Going off cold turkey instead of tapering off can sometimes make withdrawal worse. Maybe this is causing some of you physical illness and anxiety (?)
Have you tried popsicles? One of the most helpful things I've found when I'm nauseous or dehydrated is frozen Coke or Sprite. Coke and Sprite both tend to help settle an upset stomach. You can freeze them in an ice cube tray with toothpicks for handles or even in a plastic cup with a spoon sticking out for a handle. Sometimes it is the only thing I can keep down.
Hope you are feeling better soon!!
Hugs - Austen