... debilitating stomach cramps and unusual--for me--fatigue the last two days. I tapered off imodium then stopped two days ago. I had such hope for the Probiotic as it seemed to stop the diarrhea gradually over the two week period. Extensive testing has shown no cause and my Gastroenterologist has diagnosed Ibs d. I asked him about VSL 3 before I started it. His response was that it was a possibility. As the diarrhea and weight loss progressed he recommended Viberzi which I chose not to take due to the side effects. I was also seeing results that I attribute to the Probiotic.