Since heart attacks often share some symptoms with indigestion and fatigue, it's not always clear when a person is suffering one. While indigestion is usually restricted to the stomach and abdomen, the warning signs of a heart attack are less localized and more varied.

Classic symptoms

• Squeezing chest pain or pressure, tightness in chest or recurring chest discomfort
• Shortness of breath
• Sweating
• Pain spreading to shoulders, neck or arms
• More likely in women
• Indigestion or gas-like pain
• Dizziness, nausea or vomiting
• Unexplained weakness, fatigue
• Discomfort or pain between the shoulder blades
• Sense of impending doom

If you think you are suffering a heart attack, waste no time calling 911 and getting to the nearest emergency department.