Most students, if evaluated, have the same sleep patterns as people with narcolepsy if that makes you feel any better.

Chronic fatigue is associated with the immune system, and some people with it experience low grade episodic fevers (some as high as 101 however), muscle pain and weakness, inflammation in their joints, headaches and irritability.

It is primarily a diagnosis of exclusion when no other cause for the fatigue can be found.

Hope this helps.