For
Narcolepsy:
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Symptoms generally begin between the ages of 15 and 30.
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disabling neurological disorder of sleep regulation that affects the control of sleep and wakefulness
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Patients with the disorder experience irresistible sleep attacks, throughout the day, which can last for 30 seconds to more than 30 minutes, regardless of the amount or quality of prior nighttime sleep.
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The four classic symptoms of the disorder are excessive daytime sleepiness; cataplexy (sudden, brief episodes of muscle weakness or paralysis brought on by strong emotions such as laughter, anger, surprise or anticipation); sleep paralysis (paralysis upon falling asleep or waking up); and hypnagogic hallucinations (vivid dream-like images that occur at sleep onset).
For
Epilepsy :
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causing strange sensations, emotions, and behavior or sometimes convulsions, muscle spasms, and loss of consciousness.
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Anything that disturbs the normal pattern of neuron activity — from illness to brain damage to abnormal brain development — can lead to seizures
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Most seizures do not cause brain damage
Click on those links for additional info.
For what i can tell, both of the diseases are neurological and they dont seem to cancel each other out, so i dont see why some unfortunate character cant have both (id get a medical opinion though to be sure, at your next doctors visit, slip the question in casually
wink ). The website doesnt say whether or not the seizures will result into a coma, so i would go on google if i were you and try to get more indepth on seizures themselves
3nodding The next couple of questions would go with that research.
Good luck!