I get the chest pain too, exactly as you described. It is a classic symtom for some people. I was in and out of the hospital for several mos not knowing what was making my chest hurt so badly when the fibro first set in. Once they figured out what it was they too first tried the pain med and it did not work for me either. The pain can be so terrible that it's difficult to breath. I feel for you... The only thing that worked for me when this was really bad was a prescription the doctor suggested, Celexa, which is an antidepressant. It actually worked wonders and I experienced a minimal amount of pain in the chest area after 2 mos. I eventually stopped taking it, but it's worth asking your doctor about if this doesn't get better. I actually had two doctors suggest it. The Rhemy Dr and my Internist.
Take care and feel better