I'm not sleeping enough...haha.  Sometimes it's hard to catch yourself, just like you sometimes don't realize how unrelaxed your back and shoulders are until you get a massage; you just don't really think about it too much since sometimes you just go through the motions.  Seems that right now I don't have as much of a buffer for getting not-as-much sleep for a day and then being okay with it; not sure if that's just because I've accumulated debt or because I'm just getting to be an old fogey.  Whatever the root cause is doesn't necessarily matter too much anyways =P