Posted 9/20/2015 8:12 PM (GMT 0)
There isn't much in the centre of the rib besides the stomach, but pain radiating to the back isn't typical of stomach pain. How long have you been taking the prilsec? It can take a few weeks for the pain to die down.
It could be pain from your bowels which can feel like it travels all over the abdomen and does radiate to the back. Has your diet changed recently? You can ask for a stool test for bowel inflammation bu even if its negative it can still be pain from the bowels, gas can get trapped in areas and become very painful, usually you can find diet modifications to solve it.