I thought I was having heart burn and pain across my shoulders. It did not match was I was taught about heart attacks.
I have now had several heart attacks and deal with Angina. I have to carry Nitroglycerin at all times.
A couple of months ago they did an angiography and determined that the right side which was repaired 20 years ago is still open and working well. The left side is too far gone to repair. They ate keeping me alive with medication and cannot estimate how long that will work. Bottom line is you need to catch it as early as possible!