Donald Trump on Monday passed on speculating about Democratic rival Hillary Clinton's health or why her campaign did not disclose her pneumonia diagnosis earlier and said he would reveal the results of his own recent physical examination soon.

"I really just don't know," Trump told Fox News Monday morning. "I hope she gets well soon. I don't know what's going on." Clinton left a 9/11 memorial ceremony in New York City early on Sunday after falling ill. The Democratic nominee's physician later said that she had been diagnosed with pneumonia on Friday, forcing her to cancel campaign events for Monday and Tuesday.

Last week, however, Trump called into question Clinton's health, including a coughing fit she had aboard her plane and also at a campaign event in Ohio. During his Monday interview, Trump said that perhaps Clinton had pneumonia all along. "I see what I see. The coughing fit was a week ago, so I assume that was pneumonia also," said Trump. "I mean, I would think it would have been. So something's going on, but I just hope she gets well and gets back on the trail and we'll be seeing her at the debate."

In a later interview on CNBC, Trump said, "I don't take satisfaction" in Clinton's pneumonia. For his part, Trump said that he plans to release the results of a recent physical examination.

"I'll be releasing, when the numbers come, hopefully they are going to be good, I think they are going to be good, I feel great, but when the numbers come in, I'll be releasing very, very specific numbers," said Trump.

Last week, "The Dr. Oz Show" announced that Trump and his daughter Ivanka Trump would appear on the show Thursday to discuss his "personal health regimen."