2. Upset Stomach
One early sign of a heart attack that isn’t as well known as, say, chest pain, is upset stomach. That’s probably because nausea is so frequently tied to such a wide variety of health issues, from the flu to food poisoning. But in reality, it can be a clear sign that something is wrong with the heart.
Should you have an upset stomach prior to or during a heart attack, you may find yourself vomiting. This symptom should be more alarming if you know for certain that your last meal shouldn’t have caused any problems. It’s also worth noting that women are more likely to experience upset stomach related to heart disease than men are.