I have had irregular bowel movements for four weeks. Variety of stool (pencil, chunks, soft). No diarrhea or blood. Now have discomfort in lower left back. Chiropractor said it felt like a knot. I am worried it is something worse with the colon. Appetite has been good, have lost a few pounds, have been exercising. This all showed up after a stressful two weeks after the hurricane and drinking and eating like a college student for those two weeks. Any thoughts or suggestions?View Thread