Mine just hurt like crazy. Just touching that area was painful for me. My liver was swollen, but supposedly "okay" and they didn't see anything in my gallbladder in my scans. Of course it can be infected with Lyme, and that will not show up on scans or blood tests. I read that the gallbladder is a low oxygen place, which Borrelia likes.
I have heard of many stories of people with Lyme getting their gallbladder out, both before and after diagnosis. My doc avoided Rocephin for me because we were already worried about the gallbladder. The pain eventually declined with abx treatment and it seems okay now. Sorry to hear you lost yours. :(