Hi,

i've noticed on my left side that my bottom rib seems to becoming enlarged and is slightly protruding. There is no real pain associated with it, however I wonder if it may be getting larger. It feels like a growth of the bone itself, or maybe inflammation underneath that is pushing the ribcage outward.
I have been noticing it for the last few years but no doctor or xray has shown anything, or could offer any suggestions as to what it may be. I have also lately been experiencing something the doctor thinks is hyperventilation.
Also, when compared to the right side which feels smooth and has no protrusion, there is a larger indent under the rib cage that becomes quite noticeable when I breathe in and my arms are raised.
Has anyone experienced anything like this???