I had my gallbladder removed in 2009. lately i have been experiencing a similar pain under my ribs on the right side. what would cause this?

Many things: Many things can cause this such as stomach or small bowel ulcers, right lung pneumonia, musculoskeletal pain from pulled muscle and or bruised ribs. Primary bile duct stones (gallstones that develop in the main bile duct instead of the gallbladder) are also a rare cause. In addition, spasm of the valve that opens the bile duct can also cause this pain. See your doc if the pain continues.

? retained stone: There are a number of tests, ultrasound, mrcp that you could have to rule out a retained or new primary gallstone in your bile ducts. If these are clear an ERCP may help. Ulcers, gastritis, constipation can also cause this type of pain. Pulled muscles, neuromas can cause pain. see your surgeon to evaluate