Hi, I have experienced a case of diarrhea which consisted of only blood every 30 minutes for a 17 hour period and still have blood in a smaller amount but seems residual. I suspect a pork tenderloin that my husband cooked (undercooked) on the barbecue but he didn t have any problems. I didn t have any vomiting but a cramp in my lower pelvis area indicated that I needed to go to the bathroom. Now, I m not sure if I can eat solid food or should stick to the BRAT diet, (bananas, rice, apple sauce and toast). Also not sure if I should be seeing a Doctor (I don t have a family Doctor here as we only moved here a few months ago. Don t even know for sure what it was.....