I have had constant diarrhea (10 x day, wake up in middle of night, every single day) since 10 days after returning from Thailand (10/24/14). I have had several rounds of parasite & bacteria stool tests, including more "specific" tests, all of which have been negative.
I have had blood tests for celiacs, hormone tests for endocrine tumors, and a colonoscopy and endoscopy. All showed normal results.
I have tried 3 different antibiotics (metronidazole, Xifaxan, and another that I can't remember), none of which worked. I have tried cholestyramine, i have tried eliminating dairy, and am now eating only rics, lentils, oats, and steamed vegetables. None of these have worked so far - diet seems to have no effect on my symptoms.
Other than constant and persistent diarrhea, I have zero other symptoms. No pain, no fever, no blood in stool, no cramping, etc.
If ANYONE can solve this medical mystery ($5000 and 3 doctors later) I will give you anything and everything you want!!! Please please help!!