4. Fatigue
Asthenia, or fatigue as it is more commonly known, describes a condition of abnormal physical fatigue. It is characterized by a generalized and prolonged weakness of the body and mind as well as a significant reduction in functional strength. Unlike normal fatigue, this state of exhaustion does not correlate to an episode of physical exertion nor does it disappear with rest.
Feeling very tired all the time, can be a telling sign of heart disease, however before ascribing fatigue to some form of heart disease one should rule out a host of autoimmune disorders, drug side effects, neurological diseases, infections, endocrine disorders, and psychiatric or psychological origins.
Nevertheless, impairment of important hemodynamic factors such as heart rate, blood pressure, cardiac output and stroke volume, has been linked to the development of chronic fatigue in patients with heart disease.