moa,
i can also add on here about my experiences.
i too suffered/ suffer from the same. my problem is lingering, but getting better and is almost gone.
i was not going to respond to this post until you stated that you also felt heart palpatations after the chest pains and I have the same thing.
alot of my anxiety was fed and promoted by a horrible job that I have since left. i first suffered from terrible chest tightness and shallow breathing that would follow me pretty much every day. it really scared me. the funny thing was, i would go for long walks to walk off some of the anxious energy and would do great when i started, but as soon as i would turn around to head back my thoughts would begin to conspire against me of "what if i have a heart attack and don't make it back" and that type of thing. as soon as that happened, and again- only on the return portion of the walk- i was panicking again.
at one point, i had had enough. i went to an urgent care facility, and they did bloodwork, EKG, and X-Ray. all clear, no problems. after having all of those tests and being told that it was only ("only"- heh) anxiety, i somehow got control of it in my mind and it never happened that severe anymore.
now onto the chest pains. once the tightness stopped or lessened, chest pain started. sometimes jabs like small electric shocks, and sometimes like there was a fist around my heart. it would be sometimes on the left side, and then sometimes on the right. AND this would usually be followed with palpatations.
what i have found useful in erasing any doubt that this is anxiety, is i have asked my wife to gently apply constant pressure on the spot in my chest where the tension or pain is. for me, this brings instant relief.
conclusion: for me the chest pain is tight muscles beneath my pectorals that can be eased with massage/ and/or pressure.
this brings me peace of mind in knowing that it is not a heart problem and the chest pain is now leaving.
yesterday i had a problem because i visited a website about my old job with postings about one of the coworkers who helped to make my old job such a horrible environment and the heart palpatations returned for pretty much the whole day due to my mental mindset of being back in that place.
i told my counselor about it, and she told me to not go back to that site since it is over with, and those people are no longer in my life...i am free.
today i have done good things for myself already (hit the gym, go for a walk, eat well) and have not had to deal with the palpatations.
after doing this, i can only tell you how amazed i constantly am at the power of the mind in creating both bad, and good in our lives.
i hope this helps.
