From past 4 months I am having a left arm pain like burning sensation while resting without any work, and shoulder pain, not much breathing problems, but mild sweating, today upper abdomen mild pain, and left chest mild pains muscle pains and neck pain, jaw pain, what is the cause is this related to Cardiac problem. And some times mild chest pain, I done ecg, echo 2d, x-ray and stress tmt all are normal, all are saying it's anxiety and cervical spondylosis, I am really scared and always thinks that I have heart problem. Everyone saying cervical spondylosis. Let me know about this I am really scared.