Lately i have been feeling really sick to my stomach, whether or not I eat. This past week I have been experiencing blood in my stool, and occasionally some yellowish, mucus like diarrhea. The diarrhea is rather embarrassing because it comes frequently and uncalled for. Today in P.E. I was running and I noticed my panties begun to feel wet and it was because of that stupid diarrhea. I figure It has something to do with Gastrointestinal but not sure. I have also been feeling kind of light headed. PLEASE HELP!