I have a problem where I get severe hypnic jerks if I have been awake for long periods of time. They jerk me wide awake just as I am dozing off and I can have over half a dozen attacks.
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More Than Tired | Narcolepsy Symptom Screener and Information
https://www.morethantired.com
Narcolepsy often goes undiagnosed in adults, children, and adolescents. Learn more about narcolepsy and take the narcolepsy screener to find out if you or your child may have narcolepsy symptoms.
I have it and Sleep Apnea as well.