I have had this inflamed rib cartilage problem since 1997. The first time the pain was severe and lasted for over 12 hours. I went to the emergency room after 5 hours and that's when I learned what is was. They did all kinds of tests on me - EKG, blood, urine, x-ray. Then finally they came up with the inflamed rib cartilage. Many years went by and it did not come back. Now in spring of 2003 and 2008 and 2009 it came back as a dull and annoying ache. Taking Motrin helps a little. I just wish this damn thing would go away for good. I hate pain. And I hate feeling badly. I like to be active. This thing is stressful. But I am glad that I found this website because I thought I was the only one with this problem. Hopefully, we can all find something or someway to get rid of this pain for good. Good luck to all of us.