Two months ago I was fine and then had an episode of sudden stomach pain followed by almost passing out. Since then I have not been the same. Have done Stress Test, Echo, halter monitor, Ultrasound, CT Scan, Chest X ray, upper endoscopy, colonoscopy, and diet consists of no dairy, sugar, yeast, gluten, soy, caffeine. Have only been able to eat about 800 cal a day for over a month and a half. I also now have low blood pressure and upper abdominal pain as well as gas and bloating. (previous to the 'attack two months ago, I had been on several different antibiotics for an infection-three weeks prior to the 'attack'). I have never had these symptoms (upper abdominal pain after eating or drinking, extreme fatigue, low blood pressure, gas) or problems in the past. Now they are debilitating.