I have issues with my bowels and intestines. I had colonoscopy one month ago, Dr finds nothing wrong, and no solution. I often have urgent need to move bowels. Sometimes, during the urgent bowel movement, extreme nausea (i sometimes vomit after bowel movement). usually, after the movement of substance out of my bowels, the nausea stops. it seems as if the actual movement of substance THRU the bowels causes nausea in my stomach. any suggestions as to other options? i tried logging diet and bm for a month and found no clues as to dietary causes. thank you so much for your time.