My GP assured me that the rib pain that I feel is costochondritis, and I don't doubt it - I've had it off and on for at least 3 years (mostly on) and it never fully goes away. Right now it's flaring big-time. I guess I worry because it's my 4th rib, right under the breast. Any time things get painful or weird in that part of your body, it's a little alarming! Anyway, the pain I'm feeling isn't so much on inhalation (that has never been a problem) but is radiant - through the side of my ribcage to the back, into the shoulder, through my breast, even, though the breast itself isn't sore. It's clearly happening underneath. This has happened before but this time it seems a little more hardcore. Does this happen to anyone else, this radiating? I have my first appointment with a rheumatologist Thursday morning, where I'm hoping for a definitive dx (the GP was pretty sure fibro is the problem) and some reassurance/guidance. I can fight whatever, as long as I know what it is. This board has been a huge help. Thanks.