Thanks so much for your reply. In answer to your question, I have not been diagnosed with IBS by a physician, but from the online research I have done, it seems to fit most closely with that ailment. I am scheduled to have my first colonoscopy on May 4th, so maybe I will know definitively at that time. My other symptoms were gas, incomplete evacuation, small, hard stools sometimes, and normal ones on others. At any rate, for the past five days I have made some dietary changes, and guess what? NO MUCOUS, no gas, no symptoms at all. I stopped having the large amounts of cheeses I have always consumed, stopped drinking all soda, stopped drinking coffee, stopped eating chocolate (and that's a biggie), and started drinking water. I'm mentioning all these things with the hope that they might help you and others suffering from IBS.
Thanks again for your concern. Be well.