Day 3: why does this feel easy?

OK, i'm scared. They said I should be tired, nauseous, etc.  I am a little tired by the end of the day but otherwise I'm feeling pretty good. Water bloated still, but I'm not hungry- in fact I'm finding it hard to eat everything they want me to eat. But I do find I need to move a lot of my food into the daytime. Daytime I am hungry!