Go back to the hospital right now. it could be the sign of the severe infection. Get back to the hospital where u had the surgery becuase they already has all the informastion about u and they know what kind of surgery was performed on u. Do not get out from the hospital untill u will be positevely sure that u are doing better, do not agree with outpatient care, u need help now. Good luck.
I would definitely go back to see your doctor to make sure you don't have an infection.
My grandma had her galbadder out but still had stones in the canal might wanna have it checked out