I'm certifiable, I think

Here I sit, still up and not asleep. I have to get up VERY early in the morning, get dressed, and be at McDonald's (15 miles of curvy road away) no later than 6:30 AM. So, why am I still up? Because I'm certifiable.

I wonder if I even know how to go to bed and go to sleep at a normal hour anymore after working these late night shifts for this long. I doubt it. See me here? What do you think? Think I'm certifiable?