You know; if you don't take it easy in-between the days you work out hard, your body can't get stronger, and you lower your defense mechanisms, and make yourself susceptible to colds and other sicknesses. I know that it is tough when things don't change as fast as you would like them to, but if you have a plan - that includes "easy" days in between your intense workouts, and at least one rest day a week (no exercising at all), you will lose more weight, get stronger, and feel much better.