I feel that. I've come down with a really bad cold this month and just stopped everything for 2 weeks, and really slow getting back into it. I feel like such garbage from just that bit of inactivity. I was actually shocked by how quickly the wheels fell off, I started to hurt, feel a sluggishness that I couldn't shake, feel more depressed and hopeless... Working out helps but it's taking me a while to climb out of this hole. It's so hard, it's like I've lost the ability to believe I could feel better, let alone *want* to workout.