As a pedometer and movement motivator, Fitbit is outstanding. As an accurate assessment of your fitness, eh, not so much.
Signs of Overtraining
Suddenly, your normal workout seems too hard; you barely make it through the warm up and you feel pooped. Sometimes you cannot complete your typical workout.
You can’t lose weight or you start to gain weight even though you haven’t changed your diet or exercise routine. You may lose your appetite. Your progress diminishes or stops altogether.