Feeling crappy and sappy about everything

Do you ever get that feeling where you just feel crappy and sappy and tired, for no special reason? Not really depression, per se, just a kind of miserable ennui that totally ennervates you? I need something to bounce me back -- I hate this kind of feeling, where all you want to do is whine, even though that doesn't really get you anywhere.

( massive whining ahead )