I thought costcochondritis as well when I read your question. I moved to a new city and had to find a new chiropractor. When she popped my back, I felt a sharp instantaneous pain in my ribs. The next day I could barely move without pain between my rib bones and went to the ER. He diagnosed me with costcochondritis and basically said there wasn't a lot to do for it, but it would go away in 6 weeks. He was spot on. It seemed like the pain lasted forever, but almost 6 weeks to the day, the pain was finally gone. I haven't been back to a chiropractor since, despite getting good results where I lived before.