my friend had the same after her gallbladder surgery. Her doc gave her Colestipol which she said worked really well and stopped the diarrhea she experienced.. She only took 1/2 dose until the diarrhea subsided then she quit taking it. She said she is OK now. I think I am facing a gallbladder surgery myself but all the testing isn't done yet and I am terrified. Set to have a HIDA test on Dec 29.