I Am 84 Yrs Old And Have A Gall Bladder

I am 84 yrs old and have a gall bladder that folds on itself. have pain on right side under my ribs. When I lay down at night I have pain until lay still for a short time. then I can move without pain. .also does it make you have sour stuff come up in your throwat at night after you have been in bed asleep? YYYY@YYYY