I actually dealt with chronic chest pain for 4 years before I found out the cause. Before I took matters into my own hands I was on 4 different medications twice a day. NONE worked. but my doctor kept increasing the dosages instead of exploring other options.
One day I had chest pains so bad I thought I was dying. I actually knew I was dying. But insstead of going to the ER like I had all the other times I had chest pains, I walked myself through it. Literally paced the house for hours.
The next day I called a therapist. He immediatly put me on anti-anxiety meds and changed my life. I stopped the other meds cold turkey and started to work on what is now diagnosed as a panic disorder.
It took time. And it was frustrating. I know your problem is medical, and mine is mental health, but I sense the same frustration. I never thought I would ever find relief. I lived with the pain, real physical pain brought on by the disorder, for so long that I just didn't think it would go away. and the indifference by my doctor was not helping
My point is that eventually it will get better. you will find some answer, and you will find someone that is dedicated enough to helping you find that answer. You too will find that I am sure of it