Hello, I have had IBS for 15 years.. Just had my gallbladder/appendix out in November of last year.. What I have noticed is I don't get up in the middle of the night with dir attacks. I still have pain everyday but that is because of adhesions.. Getting my gallbladder out was a good thing.. The surgery is really no big deal.. Outpatient.. Everyone is different but if you are having issues with it get it out.. I went for 15 years with issues.. The hyda scan proved that my gallbladder was not working.. That is the for sure test to tell you.. Hope you feel better.