Yes, it is a common response when you start/increase an exercise program for your muscles to retain water. It takes 3 water molecules to bond to each glycogen molecule, and this helps deliver energy to your muscles more efficiently and helps them cope better with the new demands you are making of them. This is a good thing, as it actually helps your body perform better.
Unfortunately, this increase in your lean mass can lead to little change (or even an increase) in the scale, even as you are burning fat. This is largely a one-off effect.
However, muscle and water are considerably denser than fat, and typically this will show up as inches lost, even if the scale is being unco-operative. The tape is a much better means of tracking your progress than the scale. And if you haven't been measuring to date, are you noticing your clothes fitting better.
Also, the body naturally fluctuates by several pounds from day to day, for reasons that have nothing to do with fat loss or gain. It is very unlikely that you will see a steady linear decrease in your weight - rather more of a jagged line. Keep an eye on the longer term trend, rather than any one weigh-in number.
The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.
| current weight: 178.0