High, right upper quadrant pain is more likely gallbladder than j-pouch issues, since your j-pouch is down between your bladder and your tailbone. Depending on where your breasts lie, "below the breast" can mean different things to different people. So, generally, the gallbladder would be close to the lower edge of your rib cage, as it is below your liver.
If you are having gallbladder troubles, the pain is usually associated with eating, and especially a fatty meal. The pain can be referred beyond the region of the gallbladder too. If this is not gallbladder, it is more likely a spasm in your intercostal muscles or lung related. It could even be stomach or duodenum (like a peptic ulcer), based on the location you describe. Pepto bismol would help gallbladder and peptic ulcer symptoms too.
http://www.webmd.com/digestive...e-of-the-gallbladderJust a warning; if you are having severe pain that is pretty constant, you probably are going to have to bite the bullet and see someone in urgent care or the ER. Gallbladders do perforate, and you do not want to borrow more trouble than you have to...
Jan