Welcome to the Pain Mangement Forum. Your pain is puzzling. I am sorry that you have not been able to obtain a diagnosis.
I suggest that you return to your PCP while you are still having the pain. There are other possibilities. Even a muscle that you keep injuring could cause this pain. You could also have some inflammation in the rib area but only your physician can provide you with the answers.
Best of luck to you. Please keep in touch and let us know how you are doing.