How can you distinguish between a heartburn or chest pain from a mild heart attack?

Are there key symptoms that help differentiate them? I've heard that heartburns/chest pains have similar symptoms to a mild heart attack, but before going on to ume anything, is there a way to tell the difference between them? In other words, how do you know if you're having muscular aches or indigestion problems or acid reflux to something more serious like heart problems showing its early stages and coming in the form of a mild heart attack? I know there aren't any sure ways to pinpoint what exactly it is before seeing the doctor, but until I can do that, is there a way to differentiate them from one another? Are there different key symptoms for each of the diagnosis I've mentioned? Please help me. I'm in kind of a crisis, so please be serious in your answers and don't use this opportunity to make jokes about my situation. Thanks in advance. 10 points for best answer!