So i'm at work, headache has set in...its not unbearable though. Feeling a bit peckish, but again - nothing too horrendous yet. Drank about 80CL of water so far, and just about to start on my next bottle (50cl). This is the bit im finding so hard, im not used to drinking so much - and especially not water!! But I will persevere. Only had one shake and its 3pm, so this probably wasnt a good idea, and dont finish until 6.30pm!! Must remember to bring one to work!!