I have discovered what appears to be a lump under my rib cage, though it could quite easily be my actual rib which is lumpy.

I used to smoke, although quit about five months ago, and (with the exception of the odd one or two) I have managed to quit pretty much solidly.

It does not hurt when I breathe deeply in or out and the pain is only occasional and seems to be across the right of my rib cage.

My obvious concern is something cancer-related, though it could just as easily be a bump or a muscle strain, I guess.

Anyone suffered the same?