I have suffered with what has been called IBS for most of my life. I have had more practitioners, both traditional, integrative, new age, holistic, etc., than I would like to remember with little or no help. I have had numerous stool tests for parasites with all results being negative. This summer I went to the offices of Kevin Cahill, a tropical disease specialist, which involved parasite testing using a sigmoidscope.....not painful at all. The results were amazing and I was given back my life. I tested positive for an amoeba although I have never been out of the country and certainly not to any place tropical. After 10 days of an antibiotic, 99% of the symptoms I have been experiencing for a lifetime were gone. It was a miracle. There are many practitioners out there who no nothing of this and do not even suggest testing for parasites. I highly recommend a call of visit to Dr. Cahill. I do not believe there are any other doctors who practice as he does but it is worth the expense and even a trip to New York City for the results which might change your life. Wish someone had shared this with me many years ago but am grateful that I no longer allow my digestion to rule my life.