Some people with dilated cardiomyopathy don't have any signs or symptoms in the early stages of the disease. Signs and symptoms of dilated cardiomyopathy may include:  Fatigue Shortness of breath (dyspnea) during activity or while lying down Reduced ability to exercise Swelling (edema) in the legs, ankles, feet or belly (abdomen) Chest pain or discomfort  Fast, fluttering or pounding heartbeat (palpitations) 
people dilated cardiomyopathy don't signs symptoms early stages disease  signs symptoms dilated cardiomyopathy may include:  fatigue shortness breath (dyspnea) activity lying down reduced ability exercise swelling (edema) legs  ankles  feet belly (abdomen) chest pain discomfort  fast  fluttering pounding heartbeat (palpitations) 
dilated cardiomyopathy