Not OP, but I had my gall bladder removed in February 2015 (32/F). For the six weeks or so leading up to surgery, I changed to a very low-fat diet, small meals, lots of water. It was boring and I never knew how much I love things like cheese until I gave them up for a while, but I didn't want to trigger an attack and need emergency surgery. Planned surgery is much better than emergency surgery. After surgery, I stuck to the same diet for about 5 weeks for my digestive system to learn how to not have a gall bladder. I gradually added stuff back into my diet, and gradually increased the size of my meals, and three months post-op I was good as new. The only side effect I've noticed (and I realize I've been incredibly lucky) is that I would get constipated easily. I started taking fiber supplements and now I'm just fine! For at least a few weeks after surgery, be prepared for some digestive gymnastics. Your gall bladder wasn't working, but it was at least there, and now it's not and your system is trying to learn how to work without your liver's Executive Assistant. The same day that you go home, you'll probably have pain in your right shoulder - they inject gas into your abdomen so they have room to do the operation, and after surgery, that gas migrates up your body and eventually dissipates. While it's there, though, it fucking hurts. So - walk as much as you can. This will also help digestion, but mostly it'll help dissipate the gas from surgery. Good luck! You'll be fine!