Im 2nd week of the diet and have struggled a bit. I am really keen to get going, but wondering if the SS is just too low calorie for me. I seem to be okay until about 4ish, then start to get really lightheaded, which then leads to a terrible headache. I have 5 young children, so I cant be reduced to this every evening. I am drinking at least 6 pints of water, so think thats adequate. I'm thinking going to a higher calorie intake, then working my way down, depending on the results. Anyone had similar problems.