The mouth/stomach disconnect

I'm still trying to lose the weight I gained with my pregnancies, and have embarked on another mental bargain with myself to limit my food intake.  Before babies, I never had a problem, so I never learned to be a disciplined eater.  It was simply "open mouth, insert food."  I did have one trait, though, which I truly believe is the difference between someone who struggles with weight and someone who does not.  In pre-kid days, I'd eat until I was no longer hungry.  Something switched in my metabolism with pregnancy though, and now I eat until I'm full.  It's a subtle difference, but a real one.  I was thinking of it today because, while I'm not hungry, I'm simply desperate for food.  In addition to craving a sensation of satiety in my stomach, my mouth wants something, anything, to help me take my mind off work I don't want to do, fatigue I wish I didn't feel, and a sort of nagging sense of dissatisfaction that no doubt comes from sugar withdrawal.