Anna!! I literally feel your pain!
I lived with gallbladder pain for 15+ years!! I can’t believe the doctors didn’t tell you to take it out the first time you came in (I mean I can but wow). I am so sorry this happened to you but I’m so glad you got it taken care of.
I always tell people to opt to get it removed even if the pain isn’t that bad because I am such a nicer, better person without the constant pain.
I too experience similar symptoms like IBS post surgery. I also am doing my best to stick to a low fat diet because I feel uncomfortable after eating foods high in fat. Do you feel like you can eat fried and greasy foods without any symptoms? Have you considered staying on a low-fat diet?