Clinton was put on antibiotics and, according to “was put on antibiotics, and advised to rest and modify her schedule,” Dr. Lisa Bardack said in a statement.
“While at this morning’s event, she became overheated and dehydrated. I have just examined her and she is now re-hydrated and recovering nicely,” said Bardack, chairman of internal medicine at the Mount Kisco Medical Group.
Clinton required assistance at a 9/11 memorial at Ground Zero on Sunday morning, shown in a video posted by NBC News.
The Democratic presidential candidate was moved swiftly from the memorial in her campaign’s van to her daughter Chelsea’s New York apartment.
Clinton told reporters as she left that she was “feeling great.” Before smiling and stepping into her motorcade, she waved to supporters and said, “It’s a beautiful day in New York.”
Clinton herself greeted press outside of Chelsea’s apartment (seen above).
“Secretary Clinton attended the September 11th Commemoration Ceremony for just an hour and thirty minutes this morning to pay her respects and greet some of the families of the fallen,” said Clinton campaign spokesman Nick Merrill.
“During the ceremony, she felt overheated so departed to go to her daughter’s apartment, and is feeling much better.”
The ceremony was held in New York, keeping with an annual tradition that began in 2012. Both Clinton and Republican candidate Donald Trump attended the event along with other dignitaries.
Some conservatives have raised concerns over Clinton’s health, some accusing her of hiding a serious illness.
Rudy Giuliani and other conservatives zeroed in on a coughing episode the Democratic candidate had at a Labor Day rally.
8 Wronged Political Wives, From Hillary Clinton to Huma Abedin (Photos)
From affairs to sexual assault accusations, the following women had to decide whether to stick by their politician husbands.
Huma Abedin
On Monday, longtime Hillary Clinton aide Huma Abedin announced she was leaving husband, Anthony Weiner, who quit Congress in 2011 when he was caught sending other women sexually explicit messages. Abedin's decision was prompted by new sexting allegations, in which Weiner reportedly sent a brunette a lurid crotch shot with his toddler son in the picture.
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Elizabeth Edwards
Elizabeth Edwards was married to John Edwards, the former U.S. Senator from North Carolina and one-time Democratic presidential contender, who admitted to an extramarital affair in August 2008. He had a child with filmmaker Rielle Hunter, and upon the admission of that, Elizabeth Edwards announced a separation. She died in 2010 of metastatic breast cancer.
Wendy Baldwin Vitter
Senator David Vitter of Louisiana appeared on a prostitution ring's client list in 2007, but Wendy stuck with her husband, who continues to serve in the Senate as a Republican.
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Jenny Sanford
In 2009, Republican South Carolina Gov. Mark Sanford admitted to an extramarital affair with a woman in Argentina -- after disappearing from public duties and putting out a false story about a hike along the Appalachian trail. His wife filed for divorce later that year. And Sanford was elected to Congress in 2012.
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Silda Wall Spitzer
Democrat Eliot Spitzer was in just the second year of his term as governor of New York when he was named in a prostitution ring in 2008 and forced to resign. His wife, Slida Wall Spitzer, initially stood by her husband -- but the couple later divorced in 2013.
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Dawn Gibbons
In 2006, Nevada Governor Jim Gibbons was accused of sexually assaulting a woman in a parking garage, but Gibbons claimed he was helping her to her car. The woman didn't initially press criminal charges but filed a civil suit against Gibbons in 2009, alleging battery, false imprisonment and second-degree kidnapping. The suit was settled in 2013 for $50,000. He and his wife, Dawn, divorced in 2010.
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Donna Hanover
In the final years of his term as mayor of New York City, Rudy Giuliani was seen dining with a woman named Judith Nathan, who would later be identified as his lover. He later announced that he was separated from his wife, radio and TV personality Donna Hanover -- much to Hanover's surprise. The divorce was finalized in 2002, after he had left office, and Giuliani married Nathan in 2003.
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Former U.S. Rep.’s Anthony Weiner now-estranged wife Huma Abedin is latest politician’s spouse to be put under the spotlight of a sex scandal
From affairs to sexual assault accusations, the following women had to decide whether to stick by their politician husbands.