Mrspoohbear, did you have stones? I have heard that if you had one lodged in your bile duct when they took your gall bladder out and they didn't get it, then it will still be in there, hurting. Also, they could have damaged your bile duct when they removed your gall bladder which may explain why you continue to hurt there. Can you demand an ultrasound to check and make sure that everything looks okay there? Can you go back to your surgeon and say, hey, I still hurt like I have a gall bladder. Are you sure you took it out? And what if you damaged my bile duct? How can we go about finding out if that has happened? Don't mention to him that someone else thinks you have IBS; make him think that you think it's his fault. Because doctors are often reluctant to go against what another doctor has said. And you legitimately could have been damaged in some way by the surgery; they're not foolproof. Better to rule out everything else before giving up and declaring IBS.
And every doctor knows (or should know!) that people without gall bladders have problems to some degree afterwards. It's called post-cholecystectomy syndrome. IBS means your bowels don't function properly for some unknown reason. Post-cholecystectomy syndrome means that the lack of a gall bladder messes up your digestive tract (not necessarily just your bowels). One syndrome has no known cause, the other one has a direct and known cause. So if someone asks you what's wrong with you, don't tell them "IBS", tell them "post-cholecystectomy syndrome" because that is what's wrong with you. Granted, you can develop IBS on top of that, but more often than not, not having a gall bladder is all that is wrong with you and there are usually things to cope with it (unlike a lot of cases of IBS).