Don't be your own doctor: The physician whose name went on the medical "report" on candidate Trump says "He dictated that whole letter". To have reached this conclusion really didn't take a great deal of sophisticated textual analysis, but it's nice to have confirmation.
The problem isn't just that the report itself was fabricated, it's that the patient himself insists so much on the fabrication. A person so compelled to lie and exaggerate about the smallest of things cannot be trusted in the big things. If someone lies when literally nothing is at stake, what could possibly be expected of their truthfulness when there are consequences to be paid for being honest? It's not like he was running against some kind of Ironman triathlete or Olympic gold medalist -- it was obvious that Hillary Clinton was in no particularly great (or terrible) health. So why lie about it? Why not just give us a standard, by-the-books report on a physical?
Say what you want for or against the President's agenda, his habit of exaggerating, fabricating, and lying really should bother you.