craving fat?

Ever since my 9th flush my apepetite has noticeably increased and i have been craving fatty foods. Iam a pretty thin person, about 110, and before this would get filled up easily and eating twice a day was more than enough for me. Over the last couple of days i feel hungry or empty all the time, and have the urge to eat or drink something fatty every few hours. Yesterday i finished a whole carton of soymilk-- normally it would take me a week to do this. Is this unhealthy, can anyone give me any insight. Tweet