Ahhh! Yes, I get that too. When I was being totally strict with myself and eating very low carb I didn't get it, but now I have loosened up on the carbs adding more fruit and occasional dates etc. the demon is coming out again. I once had a book that particularly addressed this issue and recommend "Enders". Which included a square of chocolate or a few nuts or a 1 boiled candy. For me that is a very slippery slope though.
Started Primal June 2012 at 148.5lbs, and 5' 1", reached goal weight in 5 months.
Lowest weight 93lbs - too thin. Now stable at around 100lbs much better weight for me at my age.
Primal, minus eggs, dairy and a myriad of other allergens.