Read up on enemas as there are some bowel conditions worsened by enemas.
It would be a good idea to be tested or retested for gluten sensitivity, especially Celiac Disease. Recent studies have shown that more than 10% of Celiacs were misdiagnosed with IBS. Look at the Specfic Carbohydrate Diet.
Starting on one of the programs to improve digestive health will probably help you a good deal. Look at the featured programs and Dr Sutter's coke Liver Flush. I have read that people with diarrhea should not do Liver Flushes so you might see if the egg and avacaco Liver-Flush might be suitable.