from the article. Which does make sense, as pressure must be immense.

"Trump's unannounced medical appointment resurrected theories that the president's health is not as good as he says.

Trump sought to allay fears about his health during his presidential campaign, releasing a letter from his long-time personal doctor—Dr. Harold Bornstein—which lauded Trump's "astonishingly excellent" condition and claimed he would "unequivocally" be the healthiest president in history.

Bornstein has since told NBC News that the president wrote the letter himself. In 2017, Bornstein also claimed that Trump aides turned up unannounced at his office and removed files relating to the president."