Sleepies

I can't decide if my new vitamins aren't as powerful as my old brand, I'm catching a cold or the cold weather sapped my energy but I am on the brink of falling asleep all the time.  I slept in the car during soccer practice last night, went to bed as soon as I got home, slept through my morning workout and now I'm nodding off at my desk.  Today is going to be a long day.