Hey Weg, I feel you on your chest pain problem. I'm now going on six months of near-constant chest discomfort. It absolutely destroyed the latter half of 2013 for me and unfortunately 2014 has gotten off to a terrible start too.
I don't know if my pain is like yours at all. Mine sort of feels like a weird tearing, or like there are splinters of wood or glass stuck somewhere in my chest area - esophagus, lungs, heart? When it gets real bad, it can feel very uncomfortable to talk, breathe deeply, or cough. The one thing that's kept me from panicking and running to the hospital is that I can sort of interact with and change the pain by tilting my head around and rocking my body around as I sit. I don't believe you can do that with heart pain, but I could be wrong. I don't feel like checking.
My biggest challenge recently is knowing when the anxiety ends and the 'real' problems begin. I continue to believe, at least in part, that the pain is real and the anxiety is a response. That's what it feels like. But from what I've read, I need to wholly believe that the anxiety causes the pain, even when it comes about while I'm feeling relaxed. It seems unfair that anxiety can do these things even from 'beyond the grave', when it seems to be under control or away for a while.
I'm just trying to deal with it as best I can while I save up money to see a doctor.