Oh, I tried to have my GB taken out! But the surgeon wouldn't do it because he said my symptoms sounded like Sphincter of Oddi. He was right! Sometimes Doctors are not all idiots.
The other thing I found that when I'm having issues with GB pain or a stone stuck is to put a heating pad on the area. That helps a lot too. I tried the "Castor oil packs" but I found that just putting a heating pad on worked just as well.
But you're doing better with the Epsom Salts , and that's all that matters. Good luck with your flush, I hope you get rid of whatever's been bugging you.