One sign of Narcolepsy is excessive daytime sleepiness. However, not everyone with narcolepsy has the same symptoms. You may fall asleep suddenly, have muscle weakness or loss of control, or temporary inability to move or speak.
Narcolepsy is a lifelong neurologic disorder that is characterized by the inability to control normal sleep wake cycles. Individuals with narcolepsy feel overwhelmingly tired, and in some cases, can have sudden episodes of muscle weakness.