TMI ALERT!! Black diarrhea post op.
RNY on 03/25/13
I same thing, but became lightheaded. I went to the hospital and had internal bleeding. I got cramps before having to run to the bathroom and the stool began to get brighter red. Keep an eye on it. I thought it was nothing, but then almost needed transfusion. Mine started a day 7. I dont mean to scare you, but keep an eye on it!!