Hello since two days I am experiencing sudden sharp electric shock kind of pain in upper pectoral region of left side of my chest This pain is sharp and lasts for few seconds and goes away and comes back after few hrs. Did my ECG and Xray and blood tests. Everything seems normal as per GP But am worried as pain persist most of the night times and am unable to sleep because of the same What could be the reason, it is emergency? What home remedies I can practice while I experience sudden pain