This is absolutely sound advice. Thanks for the concern. I've burned twice now and it's no fun!
Fortunately, it's not exhaustion from work. This is all due to leisure activities. Two nights ago I stayed up late with my son playing with PLUS-PLUS, night before last I stayed up with my wife spending some QT together, last night I played !go all night with some local friends.
Luckily, I have a float scheduled today so that'll relax me. I might even pick my kid up early and get into some trouble with him. It's Friday, after all!