What you are experiencing sounds like what I had except I did not have as much pain but would go thru periods of hopelessness as my life disintegrated around me. Underlying all of the specific problems was undiagnosed gluten sensitivity - Celiac Disease and non-celiac sprue. The soreness on the left side under and below the ribs was caused by a swollen spleen which seems to have been caused by a malaria parasite and treated using homeopathic drops and a Clark's Zapper. Drs missed this but an ND found it. I've had several bouts of pancreatitis, also more on the left side and used Hulda Clark 's programs to clear up the problems. (see the CZ Liver Flush Support Forum and the Hulda Clark Forum ).
If you have had tests for Celiac Disease they may have showed false negatives, which happens 20 to 30% of the time. Ask for a complete Celiac Panel and then go on a strict gluten free diet. I've found the Specific Carbohydrate Diet helpful.
Several people on the Liver Flush Forum have posted information about which scans can show different kinds of Gallstones and biliary insufficiency. People who have lost their gallbladder also post there and are helped by Liver Flushes. One of the experts there, Telman, may give you information on your pain so write a message to him on the forum.
Are your stools dark brown (normal) or lighter (indicating insufficient bile)?