The illness she recently dealt with was serious. You don't "bounce back" as quickly as when you are younger. She is hoping to be 100% for the rescheduled date of her tour. I have never followed her closely, but hope she is able to do great performances on her last tour, which I understand can be grueling for even young celebrities. I also hope she doesn't try anymore cosmetic surgery, which may have caused the dangerous infection she is recuperating from.