She gets it.
Trump is saying every chance he gets that Hillary does not have the energy to be president. That is code for saying that she is in poor health. When he becomes the nominee, he will zero in on that and harp on it.
That is why he released his health records. He will demand she release hers. Trump has intel on Hillary’s health and he thinks it is a serious deal killer.
Unlike any other candidate he will go after the health issue and won’t let go. If her health is as bad as Trump thinks, he has a real poison pill there for Hillary.