I would wholeheartedly support the gallbladder theory. Why- it has all just happened to me.
Basically for the last 4 yrs i have gut symptoms, fobbed off with ibs, gastritis, gord dah de dah
I started hrt in april withina month vomiting bile (tmi lol), upper cental tummy pain and under the right sided ribs, with lots of bra strap back pain- my gp still insisted it was gastritis, but this time i told him I thought it was my gallbladder- so i think he was trying to humour me when he sent me for a scan......Low and behold a bag full of huge marbles. The radiographer said that it had been years in the making and hrt just brought it to a head. I am still really cross with them. I said to him “i told you so, “humble pie pal. It comes to something when i have to self diagnose
Ask for a scan and don't be fobbed off