I have pain under my ribs in my right side and radiates to my back. blood test came back normal. did ultrasound, endoscopy , ct scan all normal.

RUQ anatomy: Anatomically, right upper quadrant (RUQ) of the abdomen includes: liver, gallbladder, pancreatic head, bile ducts and ampulla, c-loop of the duodenum, stomach antrum and pylorus, the hepatic flexure of the colon. Don't forget the diaphragm and lower chest are pretty close by. The abdominal musculature, ribs, and skin can all contribute as well to localizing RUQ pain. More testing is appropriate.