I have written quite a bit about gallstones in the past. Firstly, no problems on the medical.
I had the bag removed, along with a single stone the size of a small chicken egg, through a hole that left almost no scar. I was walking about in the foyer of the hospital 36 hours after I walked in.
I allowed mine to get very bad before it was correctly diagnosed. It's hard to describe the pain, but it was totally disabling. Using a weeks worth of Pethidine sp? in one night didn't touch it.
So, while you're waiting, take extreme care with your diet and read up on how to relieve the pressure should you be unlucky enough to have another attack.