Pain in the heart area is always a concern, even more so when it is related to exertion and involves the left arm as you describe yourself. However you state that you have had a stress test, and if this was normal then it is highly unlikely that your pain is secondary to a decreased blood supply to the heart which is the concern for heart attack. 3.We do know that persons with MVP do tend to have various unexplainable chest pains and that there seems to be a concomitant symptoms of autonomic nervous dysfunction. There is a lot of interest in this field, and research is being done, however the scientific answers as such are pretty far off as best I can tell. I hope you find this information useful.
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