Rib cage discomfort?

I've started noticing these past few days my rib cage has been having some really bad discomfort... does this happen with anyone on prednisone...?

My back is also killing me

Is it bilateral or on one side?

I got this myself and it was trapped gas for me anyways. I would press and reb on my belly under my rib cage around the area and then it would release. I was worried at first but now that I know I watch for gassy foods and have been fine. I thought I would mention it but maybe this can be part of your issues. It was like a nagging ache under my rib cage.

With costco do you get pain when you breathe in? Because thats not the case its more of a pain that reaches from the right side of my rib cage to the middle of my back (if that makes sense)

I had pain there twice. The first time it was just front pain and I had bad blood values from my gallbladder/liver.

The second time I had pain just below my right breast along my ribcage that radiated to the back. It turned out to be shingles (another manifestation of chicken pox). It hurt quite a bit...hurt to breath, hurt to move, etc. Steroids make you more susceptible to shingles. If you develop a rash please go see a doctor ASAP. If you treat shingles early it will be less severe.

If I were you I would call my GI's office and tell them about the pain and ask if you should be checked out. That right side is the side of your gallbladder and whenever I reported pain in that area they would do bloodwork and/or do an ultrasound to make sure things were not inflamed.

It could also be a muscle pull (like a pulled intercostal muscle).