Do you have any other health issues? I am diabetic; I had the same issues, except it was my blood sugar going to low due to the change in weight. Yes, head hunger is hard to overcome, just follow the rules, get your fills and don’t give up. It will work. Make sure that you are eating enough calories so that you don’t go into starvation mode. This I know from experience. Plateaus, they suck and do happen, just change up your routine to help overcome. Best of luck.