Heart and Vascular Health Infographic: 6 Deadly Heart Disorders and Conditions By Heart and Vascular Institute, April 1, 2015 Does your heart flutter sometimes? Do you always feel really tired? Most people have had heart palpitations, been lightheaded, or felt short of breath at one time or another. Sometimes, a little chest discomfort is nothing to worry about — but sometimes, these symptoms can be signs of serious, life-threatening heart problems. Learn about the signs and symptoms of six major heart problems below, so that you can stop them in time. RELATED: 10 Ways to Reduce Heart Disease Risk For more information on Atrial Fibrillation visit our Medical Monday page. And you can learn more about your risk factors for heart issues by visiting a free heart screening.