I found a vlog with a very clear description of what it is like to have narcolepsy. I posted this response:
Thank you for posting your experience. I had narcolepsy under control with a combination of Provigil and a CPAP machine until one day a car hit me while I was bicycling for exercise. Now I never get by without sleep more than 2½ hours. I am familiar with wakeful dreaming, and lost hours (even one whole day I could not recall). I do fall down drooling sometimes, but I'm asleep when that happens. Your clear definition of cataplexy eliminates that diagnosis for me.
Reference:
nololtoday. (Videographer) (2010). Narcolepsy with cataplexy (version 2.0) [Web].
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