Rosie O'Donnell opened up about her recent heart attack in a new interview with People magazine published Friday.
O'Donnell suffered a heart attack in August, which she revealed in a blog post on her site. At the time, she said that she felt "nauseous" and vomited after helping a woman out of her car, and was told by a cardiologist the next day that she had in fact experienced a heart attack.
She offered more details about the harrowing experience, telling People that she was overcome with emotion at the doctor's office. "I started crying," O'Donnell recalled. "I almost died – and that's not an over-exaggeration. That's a fact."
She credited the heart attack for teaching her "to take care" of herself. She said that she has been eating healthfully ever since, and lost twelve pounds so far.
O'Donnell will also appear on the October 8th episode of "Dr. Oz," and appears to be involved in advocacy for women's heart health. She recently tweeted a call for stories from women who have experienced heart attacks.
Related on HuffPost:
Rosie discussed her new show on OWN at the TCA's press tour in 2011.
Rosie O'Donnell and councilwoman Rosie Mendez attend Everything's Coming Up Rosie(s)! at P.S. 122 on April 12, 2010 in New York City.
Rosie O'Donnell attended the screening of the HBO documentary "A Family is a Family: A Rosie O'Donnell Celebration" at the HBO Theater on January 19, 2010 in New York City.
O'Donnell and girlfriend Michelle Rounds made their public debut in September. The couple reportedly met in a Starbucks.
Rosie O'Donnell, at the Super Bowl hosting a special edition of her SiriusXM "Rosie Radio" show, meets Green Bay Packers linebacker Clay Matthews during his appearance on SiriusXM NFL Radio live from Radio Row at the J.W. Marriott on February 3, 2012 in Indianapolis, Indiana. (Photo by Cindy Ord/Getty Images for SiriusXM)
Rosie O'Donnell and Michelle Rounds attended the 2011 National Board of Review Awards gala at Cipriani 42nd Street on January 10, 2012 in New York City.
Rosie O'Donnell and Kenneth Cole attend the amfAR New York Gala to kick off Fall 2011 Fashion Week at Cipriani Wall Street on February 9, 2011 in New York City. (Photo by Andrew H. Walker/Getty Images)
Actor Forest Whitaker, actress Rosie O'Donnell and Cory Booker, mayor of Newark, New Jersey, attend the Corey Booker Panel At Bing Bar on January 23, 2011 in Park City, Utah. (Photo by Jason Kempin/Getty Images for Bing)
Rosie O'Donnell and Whoopi Goldberg attend the Broadway Opening of 'American Idiot' at the St. James Theatre on April 20, 2010 in New York City. (Photo by Jason Kempin/Getty Images)
Producer and film subject Margret Dagmar Ericsdottir, actress Rosie O'Donnell, director Fridrik Thor Fridriksson and VP of HBO Documentary Programming, Jackie Glover attend the HBO Documentary Screening Of ' A Mother's Courage' at the HBO Theater on March 22, 2010 in New York City. (Photo by Michael Loccisano/Getty Images for HBO)
Rosie O'Donnell attends the after party for the Off Broadway opening night of 'Love, Loss and What I Wore' at Bryant Park Grill on October 1, 2009 in New York City. (Photo by Bryan Bedder/Getty Images)
Actor Matthew Broderick and Rosie O'Donnell attend 'The Starry Messenger' cast party at Montenapo Restaurant on November 16, 2009 in New York City. (Photo by Will Ragozzino/Getty Images)
Rosie O'Donnell attends the 13th Annual Kids' Night On Broadway at Madame Tussauds New York on February 3, 2009 in New York City. (Photo by Astrid Stawiarz/Getty Images)
Actress Fran Drescher (L) and Rosie O'Donnell (R) attend the 2008 Rosie's Gala at the Marriott Marquis on November 24, 2008 in New York City. (Photo by Amy Sussman/Getty Images)
TV personality Rachel Ray (L) and Rosie O'Donnell (R) attend the 2008 Rosie's Gala at the Marriott Marquis on November 24, 2008 in New York City. (Photo by Amy Sussman/Getty Images)
Rosie O'Donnell and Parker O'Donnell attend 'Billy Elliot The Musical' on Broadway at the Imperial Theatre on November 13, 2008 in New York City. (Photo by Scott Wintrow/Getty Images)
Rosie O'Donnell attends the premiere of 'Pray The Devil Back To Hell' during the 2008 Tribeca Film Festival on April 24, 2008 in New York City. (Photo by Gary Gershoff/Getty Images for Tribeca Film Festival)
Rosie O'Donnell performs during the 'Night of Too Many Stars: An Overbooked Benefit for Autism Education' presented by Comedy Central at the Beacon Theatre on April 13, 2008 in New York City.
Rosie O'Donnell signs her new book 'Celebrity Detox,' at Borders Books & Music at Columbus Circle on November 6, 2007 in New York City. (Photo by Amy Sussman/Getty Images)
Rosie O'Donnell performs during the kickoff of the first annual True Colors Tour at the MGM Grand Garden Arena June 8, 2007 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)
NEW YORK - JUNE 03: Television personality Rosie O'Donnell speaks at the Sunday Book and Author Breakfast at the Book Expo at the Jacob Javitz Center June 3, 2007 in New York City. (Photo by Brad Barket/Getty Images)
Rosie O'Donnell (L) and from Spring Awakening John Gallagher Jr. (R) speak at the Spring Awakening and Degrassi panel discussion with Rosie O'Donnell at the Eugene O'Neill Theater on April 30, 2007 in New York City. (Photo by Amy Sussman/Getty Images for Nickelodeon)
O'Donnell married her first wife Kelli Carpenter in San Francisco in 2004. The couple later divorced in 2007.
The couple had four children together.
O'Donnell reportedly dated Tracy Kachtick-Anders for about year.