Exactly, she gets too intense with the workout, at crazy levels, so much her body looks visibly tired after. And she doesn't even need all this intensity, her regualr routine is already completely effective: she could walk tomorrow and be more then perfect! It's a mental thing that gets her every year before the show, the ansiety of not being ready: like on the periscope live videos from the days before the 2015 show, when she was going to London with Dino, Mercedes and Joe, and while they were filming everything and chatting togheter she was there almost freezed as much she was anxious.