Cardiomyopathy is a term used to describe a range of disorders that damage the heart muscle. There may be little or no symptoms at first. As the condition progresses, shortness of breath, fatigue, and limb edema may occur as a result of the start of heart failure. An abnormal heartbeat and fainting sound are possible. Those who are impacted are at a higher risk of sudden cardiac death. Cardiomyopathies can cause edema in the lower limbs and shortness of breath following physical effort. Arrhythmia, fainting and dizziness are some of the additional symptoms of the illness.