Signs of narcolepsy include:
- Excessive daytime sleepiness. You may fall asleep without warning, anywhere, anytime.
- Sudden loss of muscle tone. This condition is called cataplexy. It can cause a number of physical changes, from slurred speech to complete weakness of most muscles, and may last for a few seconds to a few minutes.
- Sleep paralysis. You may experience a temporary inability to move or speak while falling asleep or upon waking.
- Hallucinations. They are called hypnagogic hallucinations if they happen as you fall asleep and hypnopompic hallucinations if they occur upon waking.
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