I, in fact, just had a gallbladder attack last night and I am only 16! It was very horrible, yet my mother (who has had her gallbladder removed) told me that it would go away, or help rather, if I drank a can of coke. Specifically, a can. I drank a can and a half which helped me belch a lot. After that, I no longer felt nauseated/ was vomiting and the pain in my back/rib cage subsided to the point where I could finally go to sleep. I don't know if the can of coke works for all people, but I know it worked for me.