Chronic fatigue is a disorder characterized by debilitating fatigue with no discernable medical condition. It is associated with viral infections, immune disorders, and hormone imbalance syndromes. The exact cause for the condition is not fully understood.
However, some theories concerning how it develops include viral infections, psychological stress, weakened immune system, and extreme stress. It is also conceivable that some individuals are genetically predisposed to get chronic fatigue syndrome.
Some viral infections studied concerning chronic fatigue syndrome include Epstein Barr virus, human herpes virus6, Ross River virus, and rubella virus. No matter the cause, if your fatigue seems to be on the level of narcolepsy, it is important that you see a doctor and tell them your symptoms.