Pressure can be so great you can’t breathe — but can also feel mild and more akin to heartburn than a Hollywood-style heart attack.
Or your back, neck, and stomach. Nerve pathways leading from your heart may cause heaviness or numbness in other parts of your body.
Experts aren’t exactly sure why, but it’s possible heart attacks stimulate the vagus nerve or other nearby nerves which can upset your stomach.
Fatigue is also a symptom of heart attacks. The blood struggles to flow to or from your heart, meaning the rest of your body isn't getting the energy it needs.
Cold sweats are a hallmark of heart attacks, possibly an indication of your nervous system’s response to pain, or a reaction to a spike in blood pressure.
One in five people who have a heart attack have no symptoms at all, or symptoms so mild it feels like indigestion. Women are more likely to have a silent heart attack than men.