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How can I tell if I'm suffering from a heart attack?
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The first step in determining whether or not you are having a heart attack is to call 911 and seek medical attention immediately. If you have any of the following symptoms, it's important to get help right away: chest pain or discomfort, shortness of breath, nausea, sweating, lightheadedness, or fatigue. It's also important to note that some people may experience these symptoms without actually having a heart attack.