I've had gall bladder surgery several years ago.......years before with 3 duodenal ulcers and 3 peptic I had gastric by pass surgery.....where acids were by-passed.....did well on any kind of foods for years.....but after lapcroscopic gall bladder surgery......have constant diareaha .......have taken Imodium that seems to hold....however later on severe cramping occurs with some constipation and then severe emptying.......I am 67 yrs old and down to 100 lbs.....was 120 befor gagg bladder surgery......also at one point needed blood transfusion as I was very anemic......since then have been taking 325 mg of iron.......must have some way to gain weight