What does a feeling of fullness (hunger-wise) mean? Does it mean that you have consumed all that yor body wants to eat right now? Does it mean that further consumption will be in excess and end up as waste or fat? What does a feeling of thirst mean? Does it mean that your body needs more fluids? I drank about a gallon of water once and peed a lot after that (clear urine)...does this mean that a person can only consume so much and the rest is waste?