how can you tell if your having a heart attack?
['Pressure, tightness, pain, or a squeezing or aching sensation in your chest or arms that may spread to your neck, jaw or back.', 'Nausea, indigestion, heartburn or abdominal pain.', 'Shortness of breath.', 'Cold sweat.', 'Fatigue.', 'Lightheadedness or sudden dizziness.']