Will you recognise your heart attack? Take the quiz to test your knowledge. 1 2 3 4 5 All heart attacks start with severe chest pain.TrueFalse The warning signs of a heart attack could start slowly and usually last at least 10 minutes. TrueFalse Jaw pain is a warning sign of a heart attack.TrueFalse Nausea, dizziness and a cold sweat are warning signs of a heart attack.TrueFalse You should be sure you are having a heart attack before you call an ambulance.TrueFalse Learn the warning signs and get your free Action Plan here today.