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A 40-year-old member asked:

Sometimes i feel full of energy then all of a sudden so sleepy i can't keep my head up. what does this sound like?

1 doctor answer1 doctor weighed in
Dr. Catherine Willner
Neurology 37 years experience
?Sleep disorder: There could be many reasons, possibly low blood sugar, but a very specific sudden onset of sleepiness (and usually actually falling asleep with little warning) is narcolepsy. To sort that out you need to see a sleep specialist who will decide if you need a formal overnight sleep test and then the follow-up morning test to see if you still fall asleep quickly after good night's sleep, .
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Last updated Jul 21, 2013


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