I would have to agree with you. Strange man, and his assistant in the background. Whole thing seems like a joke. But, Trump doesn't show any signs of health problems, unlike Hillary.
Maybe Trump is using this one of his doctors in order to bait Hillary into saying something insulting about him. Why would Trump do this? Perhaps he knows about one of Hillary’s doctors who looks even freakier, and makes Donald’s doctor look like Marcus Welby. Hey! It’s a speculation. Trump has to know how this doctor comes off on TV.