Where, oh where, has my depth perception gone?

This morning, I hit myself in the jaw with the laundry room door. I got ahead of myself and pushed the door closed before my head was out of the way. Who does that?? I would blame the cold medicine I took this morning, but I DID THE SAME THING YESTERDAY. Except yesterday I hit myself in the nose and forehead. My whole face hurts today (don't even say it, Dad -- I know what you're thinking). Do you think this is a symptom of a bigger problem? Like, maybe an extreme case of idiocy?