Fatigue: There are so many possible causes of feeling tired. Some reasons can include anaemia, low thyroid or other endocrine disorder including diabetes, non-restorative sleep, depression, medication, alcohol or drug effect, occult cancer, lung, liver or heart disease, rheumatological disease, physical deconditioning, nutritional deficiency, electrolyte imbalance, to name just a few.
Answered 4/24/2014
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