My eyes are not good this past days. It tends to feel heavy after staring at the computer for 3 - 4 hours. It makes me drowsy and a little swooning because of sleepiness.. It seems I am lack of sleep for a day or two. If I take a sleep, I end up waking at 7am with the computer running. I have a cup of coffee on the left and bottled water on my right. But, still, I feel drowsy even as of this writing. Oh, what's happening with my eyes? Do you know?