I'm perfectly capable of absentmindedly either eating immense quantities of junk food without realizing it, or absentmindedly not eating until I happen to think that oh, I might be hungry or something, even though my stomach isn't nagging me.
This is what carrots are good for.
Now that I've had something resembling a proper meal, I feel not half so dizzy, and therefore I am safe to go to sleep or something.
Also, my cat is being a little snugglefiend.