Two days ago, I had a case of diarrhea . I had probably eaten too much food. It was dark in appearance and looked like sludge and came out very fast. It lasted about an hour and about two-three hours later it happened again, not as much. The volume and speed of it was expelled from my body was a bit alarming. The next day, I skipped breakfast and had a very light lunch of chicken noodle soup and some crackers and peanuts. I took some pepto bismol the night it happened and the next day. Today, I had two hard boiled eggs and a couple pieces of sausage, for lunch a small turkey sandwich. About 1-2 hours later I started to feel cramps and again I expelled waste material from my body at a quick rate, it had more physical form to it but still it was dark in appearance. No blood could be seen. There could have been blood in the feces, I don t know. I made an appointment to schedule a colonoscopy next Thursday with a nurse practitioner. Do you have any other suggestions? Should I go to the emergency room. I don t believe I have dysentery. The other night I consumed food from a Japanese Restaurant where they prepare the food in front of you. Could I have food poisoning or caught a bug from something?