"I saw what was going on with her and I said, 'You know, I'm going to go do something and I actually took a physical last week and probably, I guess this week, will release the results of it," the Republican presidential nominee told "Squawk Box" in a telephone interview.
Trump made his remarks a day after his 68-year-old rival left Sunday's 9/11 memorial at ground zero after she felt "overheated," according to her campaign. She had to be helped into van. A note from her doctor released later Sunday said she had been diagnosed with pneumonia on Friday.
Clinton was taken to daughter Chelsea's New York apartment. About two hours later, she emerged and told onlookers: "It's a beautiful day in New York." She said she was "feeling better," according to NBC News.