brit- I attempted to take the prednisone they prescribed me but unfortunately I react very badly to steroids and am no longer able to take them for anything, including crohns. My worst pain was in the left side of my ribs, felt liek someone was sticking a knife in my side and pulling it out over and over again. But I did have some other pretty strong pains over my chest, too.
If you are having trouble eating and the only thing that is working for you is narcotics I would say it is time to call your doctor back and discuss other options. I read online that if it does not go away they may do a cortisone shot in the area that is being affected.
Hope you get some answers and start feeling better! Feel free to ask any questions whenever you'd like!!!