Hello, nschrader6, You stated that you had your gallbladder surgery 3 weeks ago. I am assuming this was done through a laparoscopic approach. Occasionally, during surgery, due to manipulation of the bile duct, the channel that carries the bile from the gallbladder into the intestine, a small stone can escape and plug the duct. If this happens, you will have lot of pain, fever,nausea, vomiting and even yellow jaundice. You don t seem to have those symptoms. The other possibility is a inflammation of the pancreas since it is in close proximity to the gallbladder. I have a feeling that your symptoms of pain under the rib cage and radiation to the back is suggestive of Pancreatitis , may be a mild case. You should talk to the surgeon who performed your surgery and ask him to send you for some blood tests for pancreas, like Serum Amylase, Serum Lipase, Blood count and also a repeat liver enzyme tests. This might give some answers to your concerns. Wish you good luck.