Weight

Your weight is going to fluctuate from day to day and hour to hour. That's how our bodies are designed to work.

http://community.myfitnesspal.com/en/discussion/10084670/it-is-unlikely-that-you-will-lose-weight-consistently-i-e-weight-loss-is-not-linear

http://community.myfitnesspal.com/en/discussion/10196160/scale-stress-syndrome

Everybody has that issue. The thing about weight/scales you have to remember is this: What you see on a scale is simply a reflection of how gravity is affecting you AT THAT particular moment. A lot of things can affect this, like too much water, or salt, or it's Wednesday, or you are standing on an undiscovered magnetic line.

In other words, your weight is going to change, sometimes good and sometimes bad. There are better ways of measuring progress than a number in a small window.