I had covid symptoms lasted for almost a month, like shortness of breath,fever,etc loss of smell taste, fatigue, even after 1.5 months I have palpitations in heart and feeling pain in left arm and checked my ecg echo which is normal, but still I feel palpitation and left arm pain and feel some pain in chest mild, feel stressed while doing any work and tired even after walking what I am suffering from is it heart related? like any issues with heart? Do I need further tests? This pain in left arm and palpitations making sleepless pls help me what to do