After the 1 week of my pre op diet, I too was thinking, what am I doing....headaches and starving....but it gets easier....I think my main problem was caffeine withdraw. On my pre op diet I was a protein shake for breakfast, one for lunch and 4 oz of fish or chicken with small amt of veggies for dinner. And water water water! Hang in there, I wish you luck! I was banded 2-4-10.....and I love my band! Peggy