I'm feeling calorie deficient...

I'm out to get a mocha... I've got that whole hollow feeling right now, the one that usually precedes my feeling ill. I get it whenever I don't eat enough while awake. (Not that I eat while sleeping, but I can eat three meals and get that feeling if I stay up late, or get more sleep and get by with one meal.)

UPDATE: I'm back, mocha in hand. And feeling much better.