You can not ketch it even if you live with someone who has it. Doctors are not sure exactly what causes narcolepsy but they do think it is hereditary. Symptoms Narcoleptic people have other problems other than just falling asleep uncontrollably. Many narcoleptic people hallucinate. They see things that aren't really there as if they are dreaming.
Most narcoleptic patients are socially impaired.
The worst symptom is cateplexy. Cateplexy is when you become paralyzed. Narcoleptic patients will just drop to the floor and become paralyzed for 1-5 minutes at a time. This is very scary for them. Cataplexy usually occurs after a narcoleptic patients laughs, gets angry or when they get surprised.