Sleepier (if that is even a word)

My body just won't stand as it used to, just yesterday I slept for 16 hours if I'm not mistaken.
from five o'clock in the evening to about nine to nine thirty in the morning, and I still find it hard to wake up to go to campus. Allthough the class starts at one, I finished breakfast and getting ready at eleven. When I got to campus, I still feel dizy and I find  it hard to keep standing. Thank God the class today is in the computer lab, where we can sit and type in the class. In my high school years, I also like to sleep, but not as often as now, I had many activities when I was still in highschool, I played soccer for both the junior and the senior teams, also with basketball, I also was asked to play for the senior basketball team. I also took martial arts training when I was in highschool. I had more activities then and less now, but my body still can't keep up.