Shana,
My name is Morgan, I am 20, and I have pain in my right ribcage pretty often (I am 20 yrs, and 16 yrs post op (had 2 surgeries as a kid) this pain happens right around one of my chest tube scars, and it is pretty wild. one night I almost made my mom take me into the ER (maybe 6 or so yrs ago) usually, Its when I do something stupid like weed whack (I am all of 110 lbs, and 5 ft tall with some pretty serious heart issues, so weed whacking is alot for me) but like ross said, I think its damage to my cartilages in my chest from my 2 surgeries, or adhesions from scar tissue (my chest tube scars are pretty sunken in, I am sure there are some adhesions in there) what I do when this gets bad is take 4 advil 4 times a day to reduce the inflammation. this is what helps best for me. if its bad enough I throw in a tylenol with codeine
hope this helps
Morgan