I've also got pain under my left ribs which radiates into the chest, into my upper back, sometimes under my right ribs, and right arm, which isn't as often and not as bad, but usually it radiates under my left arm too. I also get pains in my stomach all over, sharp pains a bit like spasms, as well as lower back pain at times, I also feel nausea at some points too with all of these symptoms. As long as you have been fully checked out I'm sure it's nothing to worry about.