Weight Gain after Gallbladder Removal

Hi all. Has anyone here experienced significant weight gain after having their gallbladder removed?

I have gained 50 lbs since having my gallbladder removed at the end of May. I am very active and have made no changes to that or my diet. My clothes don't fit and my body aches, it's as if my bones hurt. I don't know what else could cause it. The gallbaldder is the only thing that changed in that time. My doctor said she has never heard of it happening though...