Symptoms may include shortness of breath, fatigue and a rapid heart rate. Symptoms may also include lightheadedness, dizziness or fainting spells, especially during physical exertion.
Dilated cardiomyopathy can also result in the formation of blood clots in the heart. These clots can break away and clog vessels throughout the body, damaging organs and tissues. A clot that reaches the brain can cause a stroke.