Was I in ketosis? I am doing WS, I havnt been cutting out carbs but have cut down a lot and been sticking to under 400cals for an evening meal. Saturday night I must have gone over the 400 cals as I had some drinks and Sunday I had fish n chips. Today I have been sooo hungry and had a bad headache which is just how I felt when I started the diet last Monday. Could I have been in ketosis before the weekend?