hello, 1) if you experience this pain associated with excercise then probably it is muscular pain which you may feel sometimes due to vigrous excercise 2) if this pain occur spintaneously and associated with food intake then you might have stone in bile duct which block the bile duct and produce cramp like pain 3) stone in bile ducts are mainly secondary to gall bladder stones of which small stone nigrate into bile duct from gall bladder 4) to rule out condition proceed evaluation with liver function test and USG abdomen. If size of bile duct is increased on USG abdomen (indirect indicator of bile duct obstruction) then you might require MRI with MRCP of abdomen. 5) if USG abdomen couldn t find any abnormality theb you should proceed with CT scan abdomen in case of persistent abdominal pain