Gallbladder disease and costo can mimic each other. I could be your costo is actually gallbladder.
When I first got costo, and it was chronic, my western doctor in exasperation finally commanded that i have my gallbladder removed, even when a MRI showed no stones! When I questioned this, he told me he was "sort of sick of my complaining" and he didn't know what else to do with me. Then he said "you know it's a throw-away organ anyway"....so I start to research gallbladder, and heartily disagreed with that. Tons of people get theirs removed, and I wonder how many really had to??
That's exactly what brought me here to CZ, that exact transaction with my doctor. The fog of western medicine had lifted.
What I do know? Gallbladder disease can definitely mimic costo symptoms. You'll know if it's acute, you'll be in major pain and most likely barfing.