Red Flags for Heart Attack Heart Any chest discomfort or pain that lasts for more than a few minutes requires immediate medical attention. Less common heart attack symptoms…Pain or discomfort in the back, between the shoulder blades, in the neck, the jaw, the left shoulder and/or one or both arms.Shortness of breath.Cold sweats.Nausea and/or vomiting.A feeling of indigestion.Sudden fatigue or weakness.Dizziness, light-headedness or fainting.Sense of impending doom (especially in women).If you experience any of the above symptoms for more than five minutes—and think you may be having a heart attack—immediately call 911. Want to Keep Reading? Continue reading with a Health Confidential membership. Sign up now Already have an account? Sign in