LISTEN: Clinton supporters glad to have her back to full health
Returning to the campaign trail - she says sitting at home was the last place she wanted to be.
These supporters say Clinton looked like she was back to full health.
Meanwhile, Clinton's rival - Donald Trump has revealed his medical history on TV.
"When you're running for president of the United States or any other country in all fairness - I think you have an obligation to be healthy. I just think you can't do the work if you're not healthy," he said.
Clinton, the Democratic nominee, was forced to leave a 9/11 memorial event early last weekend.
The 68-year-old candidate abruptly left the Ground Zero memorial in New York suffering from dehydration.
The incident, in which a wobbly Clinton appeared to lose her footing as she was helped into her vehicle, offered Republican Donald Trump a new opening to attack his White House rival with just 15 days before their first high-pressure presidential debate.
Video footage has emerged of the Democratic presidential candidate stumbling as she waited to get into a black vehicle while leaving the event.