Why am I getting this heart/chest pain?
I had heart surgery where they went up my leg and implanted a device in my heart to close a hole when I was 11.I'm 18 now. Now for some reason when I like do little exercise, like at work when I was pushing a heavy cart and re-stocking things. I get these really bad horrible heart pains, and they last for like forever. They never go away when I relax and its like constant like a headache,it feels like a headache in my heart. Sharp jabbing pains that I kind of want to cry too. It mostly happens when I'm doing some time exercise that keeps my body going but once in a while it'll happen out of the blue for no reason. What could this be?