It was a completely sudden "visit" to the hospital about which Trump curiously didnt release much info, in comparison to Sanders who explained clearly what was going on.
And the way the white house described it was shifty:
"Dr. Jonathan Reiner, former Vice President Dick Cheney's longtime cardiologist, said he remains "very skeptical" of the White House's explanation, particularly because the White House did not disclose what exam Trump underwent beyond having blood drawn.
"The President has a physician with him every day and access to 24/7/360 care," said Reiner, who was in touch with the White House on Monday about Trump's visit to Walter Reed. "I have no doubt he was taken to Walter Reed to do something specific and separate from 'a quick exam and some bloodwork.' All that can be done at the White House."
Dr. Jennifer Peña, who served as physician to Vice President Mike Pence until May 2018, called the "interim checkup" and "annual physical" characterizations "very" different.
"Routine annual is where we do a comprehensive history and physical exam, with any necessary labs and studies," she said, while noting that an "interim checkup" suggests a "follow up" visit for a condition or medication that is being monitored."