I think my internal circadian clock that promotes sleep at night is out of whack, I seem to sleep all day long.
I would sleep later, but I have to get up early for work and children to school.
That the only thing that gets up up every day. My mom always said "The only known function of sleep is to cure sleepiness" so she never took me to a dr.
Well, mono makes a person exhausted. never know, could be that.
I was thinking more along the lines of narcolepsy since it involves a decreased ability to regulate sleep-wake cycles