President Donald Trump's visit to Walter Reed on Saturday did not follow the protocol of a routine presidential medical exam, according to a person familiar with the matter.
The word I'm thinking here is "emergency", President Trump had an emergency which required him to go to the hospital. He got checked out and his problem was determined to be non-life threatening. But it is an indication that he is under stress, and that stress is causing him problems. And it's likely to get worse as events proceed.
To sum up, Donald Trump is in trouble, and having experienced what stress can do to one, I'm expecting a big announcement sometime in the near future.