It occurred to me today that I have been eating way less than usual lately. I sat down to dinner and realized that I hadn't eaten anything, at all, all day. Which was self evident in that I then scarfed down an entire pizza in about 15 minutes. I can't believe I ate the whole thing.
But still. I hadn't even been hungry. Not until I actually had food, that is. That suddenly must have hit the "Hunger-on" button, because I'm starving now, even after having just eaten.