From all you wrote, it doesnt seem that you are doing Master-Cleanse protocol. You are reducing your food intake and depriving your body from nutritions . Some people call it starving
I would suggest you read more about Master-Cleanse dieting , just pick up the recommended messages above R/RR/RRR etc and read through them .It helped me alot
If Master-Cleanse doesnt work , do Water Fast instead...there are so many options out there
good luck
V