I go thru the same thing every month. I have this crazy craving for crunchy salty things. I usually have 16 wheat thins with lots of cheese. 16 wheat thins is about 19-20carbs. I try eating only 8 but usually go back for the other 8. The craving usually happens 2 to 3 days before I start, and then its gone. On the positive side, my period is so much easier when I'm on plan, The cramps are less and the general bloating and blah are way better. You stick with it!!!!!!