They never diagnosed it by any tests for me. Its more of a, im in pain and dying, help me! A relative of mine toughed it out and ended up getting gangrene, because he didnt think a doctor could do anything for the pain.
If youre not nauseated along with the pain, then i guess its not gall bladder. I take Tagamet aka cimetidine - it kills the discomfort - any stomach related discomfort - pretty quickly when i overeat fatty foods.
Are you staying hydrated when youre fasting? I just have this vision of your poor gall bladder collapsing in on itself. I have no idea if thats how it works tho!!
I have managed my gall bladder by watching what i eat and staying hydrated. IMHO, people give in too easily to surgery as a solution, when all they really have to do is stop eating sausages!