over sleeping B Barbiturate abuse
... ... sleepiness drowsiness K Kidney failure
... ... daytime tiredness drowsiness J Jet lag
... ... drowsiness H Head injury
... ... drowsiness End stage renal disease
... ... difficulty waking up Cyclic vomiting syndrome
... drowsiness C Chagas disease
...
http://www.cureresearch.com/sym/drowsiness.htm

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