Cracks in the mortality armor

I passed out (blacked out or something) this morning. Getting out of bed to wake my son up, I got to the bedroom door and felt the blood flushing away from my head and just slumped over. I banged my head on the bed frame, and according to my wife was out for 5 to 10 seconds. I didn't feel anything abnormal, and the worse part was banging my head on the bed, but this may be signs of things to come.

Old age is showing up in force.