symptoms of cardiomyopathy
But as the condition advances, signs and symptoms usually appear. Cardiomyopathy signs and symptoms may include: 1  Breathlessness with exertion or even at rest. 2  Swelling of the legs, ankles and feet. 3  Bloating of the abdomen due to fluid buildup. 4  Cough while lying down. 5  Fatigue. 6  Irregular heartbeats that feel rapid, pounding or fluttering. 7  Chest pain.