There is a postcholecystectomy syndrome which affects a small but significnt number of patients. Possibly due to bile being dumped into the duodenum and kicking off a gastrocolic reflex. There you go, plenty of words to google, there will be a surgeon along soon to explain better
Remember when they would hack your belly open to get your gall bladder out. Muggin's job would always be to hold a friggin liver retractor for an hour or so. Nasty complications could occur. People having these keyhole procedures nowadays don't know how lucky they are.