When you speak of your doctor, is he/she a psychologist or primary care physician? If you haven't already, see a psychiatrist. They are the best with the medication questions. That's the only difference between a psychologist and a psychiatrist. The latter can prescribe drugs, psychologists can't.
I had diarhea for a year a long time ago. I had Irritable Bowel Syndrome. Everything I ate seemed to bother my stomach. I was keeping a journal. I was becoming a fanatic about
it all. Then I went to a psychologist and he performed Eye Movement Desensitization. Problem solved. I threw away the food journal.
Have you tried any over the counter medications for the diarhea? Imodium works wonders! Try that for a little while and see if it takes care of the problem. Also, there may be something you're eating or an herb you're taking that doesn't go well with your medication(s). Before I forget, run the Imodium by a pharmacist to make sure you can take it with everything else.
You are going to be okay! Don't give up! Keep up the fluids and try to relax. Please let us know how everything goes!
40 mg. Prozac, Ativan as needed.