Is it possible your crabbiness and emotional state, as a whole, is leading to the consumption of the sweets and carbs? There's definitely a link between emotion and food for many.

(Before this gig, I used to moderate at a Weight Loss site. So.. I learned a few things along the way. I also tend to go into 'solution mode' when people discuss such things with me, so if that isn't what you're looking for, please feel free to tell me. :) )