I'm gonna say the loss of mass appearance is due to being less bloated by the creatine. I felt the same way when i get off mine for a while. It's sorda depressing. Although i never lose weight when im off it, but i never really ever stop training though either. Maybe 4 days max at a time (like right now because of my work schedule and the gym's holiday schedule) that i dont work out. But how i see your dialema (sp?) is that you should have taken those 2 weeks to cut up and drop some body fat knowing that you werent gonna work out anyways.