When I weigh myself first thing in the morning I am up to 4lbs lighter than when I weigh myself at night, OK I know I shouldnt be weighing myself twice a day, but when is it your true weight ?, my CDC can only see me in the evenings so I think I have had a good loss and by the time I get to the weigh in I am 4lbs heavier than I thought I was which then puts me on a 'oh well may as well eat, not losing enough weight' cycle.