Jen, I just found this thread today and I wanted to share my experience with problems after gallbladder surgery. I had my gallbladder removed about 7 years ago after losing a lot of weight which led to gallstones (have since gained it back and more

). I never really noticed any problems until the fall last year. I was taking zoloft for anxiety but had to stop taking it for a sleep study. As soon as I stopped my digestive track went crazy and it was terrible. I started taking zoloft again for my anxiety and my digestive problems pretty much went away but I didn't think there was a connection.
I was sent to the gastroenterologist for low iron levels and they ran all kinds of tests and everything was fine. I had told them about my digestive syptoms but by the time the tests where done I was pretty much back to normal. So I told them about starting zoloft again. Turns out zoloft is prescriped for IBS also so that is what I was they think I have.
Since then I have heard of two other people I know that have IBS since their gallbladder was removed. Including my sister.