You need to do a liver/gallbladder flush. The pain you are experiencing is from gallstones, and comes from your liver/gallbladder. I am very familiar with it :-/
Dr Shultze has a 5 day liver cleanse, you could do that. Or just jump right to the Dr Clark cleanse, which i have done many times. Check the Liver Flush Support Forum for more info, or the cleanse recipes are here on Curezone.