I have a pain in heart side and some time my heart beating become fast. I have pain in my left shoulder also. I feel like some thing is moving in middle of my chest. due to which I checked uo my self from doctor he write tests of ECG Echography and T4
TSH. The result of all these test was normal. doctor said that you dont have a heart problem. but seven days have been passed I have same problem what should I do? What is the actual problem