Originale
A sleep specialist will diagnose Narcolepsy after some tests to rule out other conditions (blood work and a night time sleep study). The definitive test for Narcolepsy is the MSLT, or multiple sleep latency test. It is a series of daytime naps under close monitoring of brain activity and movement to measure how fast you fall asleep and how quickly you enter REM.
You cannot self diagnose Narcolepsy.