Hillary Clinton's campaign said Monday it will be releasing additional medical information about the Democratic presidential nominee in the next few days after her abrupt departure from a 9/11 anniversary ceremony following a health episode Sunday morning.
It was disclosed later Sunday she was diagnosed on Friday with pneumonia.
"I was supposed to rest five days," Clinton told CNN in an interview Monday night. "That’s what they told me on Friday. I didn’t follow that advice. I just want to get this over and done with and get back on the trail as soon as possible."
Clinton said she did not faint but "felt dizzy and did lose my balance a bit, but once I got in and sit down, cool off and have water, I immediately felt better."
Clinton spokesman Brian Fallon said on MSNBC the new information the campaign will release should assuage concerns about her health. He said Clinton will be back on the campaign trail by the middle of the week.
Clinton confirmed to CNN that "we will be releasing more information. We already met the standard of disclosure for past presidential candidates. We already met a high standard of transparency."
She added: "We know the least about Donald Trump of any candidate in history."
Trump, earlier Monday, said he hopes rival Clinton "gets well soon."
Trump said in an interview on "Fox and Friends" that, "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." The first of three debates is scheduled for Sept. 26.
Later in an interview on CNBC, Trump said, "It's interesting because they say pneumonia, but she was coughing very, very badly a week ago. It's very interesting to see what's going on."
Video Appears to Show Clinton Stumble at 9/11 Memorial
A video posted on social media showed Clinton was unsteady and clearly required support to enter her van after attending a Sept. 11 memorial event. Clinton's doctor said she was "overheated."
The 68-year-old former secretary of state was taken to daughter Chelsea's New York apartment and emerged about two hours later, telling onlookers: "It's a beautiful day in New York." She said she was "feeling better."
After an exam at her home in suburban New York, Clinton "is now rehydrated and recovering nicely," her doctor Lisa R. Bardack said.
In the CNN interview, Clinton said: "I am feeling so much better. I should have gotten some rest sooner."
Clinton stayed home to rest on Monday. An aide said she will do little more than phone into a fundraiser in San Francisco on Monday night.
She's skipping the event as well as the rest of her planned travel in California.
Clinton Leaves Daughter's Apartment 'Feeling Great'
"It is a very tough schedule. You go from one city, you go to Pennsylvania, Ohio, and Florida, you know, all over," Trump told CNBC. "It's grueling work. There's no question about it."
Clinton's campaign on Monday responded to criticism that it didn't disclose the pneumonia diagnosis on Friday and kept silent for eight hours Sunday about the health scare.
"We could have done better yesterday, but it is a fact that public knows more about HRC than any nominee in history," the campaign's communications director Jennifer Palmieri tweeted.
"In contrast to HRC, Trump has been less transparent than any nominee in modern history," Palmieri said in a follow up tweet.
Trump said he's planning to release detailed health information from a new physical exam in the coming days.
"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 CNBC.
He told "Fox and Friends" in a phone interview Monday that he'll "be releasing very, very specific numbers."
"Hopefully they're going to be good," he said. "I think they're going to be good. I feel great."
Trump's move is likely to increase pressure on Clinton to release more information about her health.
Clinton has so far released more details about her health than Trump.
Trump on Monday also put out a new ad highlighting Clinton's comments saying half of his supporters fit into a "basket of deplorables."
The ad features footage of Clinton speaking at a Friday fundraiser, where she said she would put "half of Trump's supporters" into "the basket of deplorables. Right? The racist, sexist, homophobic, xenophobic, Islamaphobic - you name it." She has since apologized for being "grossly generalistic."
A narrator in the ad says: "You know what's deplorable? Hillary Clinton viciously demonizing hard-working people like you."
Clinton said after the initial comments that she regretted saying "half of Trump's supporters." But she stood by her larger point that "it's deplorable that Trump has built his campaign largely on prejudice and paranoia and given a national platform to hateful views and voices."
Trump's campaign says it will spend around $2 million to run the ad this week in the battleground states of Ohio, Pennsylvania, North Carolina and Florida.
Trump said on "Fox and Friends" that Clinton's comment is the "biggest mistake of the political season."
He said when he heard the comment, he "thought that it was not something that was within the realm of possible that she would have said it."
Trump added that being elected to the White House means, "You're president of all the people."
He continued to condemn Clinton's remark Monday afternoon in a speech at the National Guard Association Conference, saying it disqualifies her from running for office.
"She divides people into baskets as though they were objects, not human beings," Trump said.
In an interview with CNBC, Trump also accused Federal Reserve Chair Janet Yellen of keeping interest rates "artificially low" for political reasons.
Trump claimed Yellen is trying to keep the economy rolling to benefit President Barack Obama.
He said: "I think she's very political and to a certain extent, I think she should be ashamed of herself."
Trump claimed the Justice Department and FBI are also making decisions for political reasons.
He said he "used to think" the Justice Department and FBI were independent, "but that's obviously not possible because Hillary Clinton is guilty as hell and everybody knows it."
He was referring to the decision not to bring charges against Clinton for using a private email server during her tenure as secretary of state.