EXCLUSIVE: Sharon Osbourne on returning to work after 'terrifying' emotional breakdown

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Sharon Osbourne is opening up about the scary moment she realized she had suffered a breakdown.

Following Monday's episode of The Talk, during which Osbourne revealed she had suffered an emotional breakdown amid severe depression last May, the 63-year-old television personality talked to ET's Kevin Frazier about the incident.

WATCH: Ozzy Osbourne Opens Up About Marriage to Sharon

"It was really, really terrifying," she said of the moment she woke up in at Cedars-Sinai Medical Center in Los Angeles and realized what was going on. "I thought of myself as this powerhouse that can take on the world... My brain fused."

"Apparently I was just in the bed unresponsive," she added. "I was awake, but I couldn't talk and I don't remember [the breakdown]."

PHTOSO: Sharon Osbourne through the years

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Sharon Osbourne in recent years
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Sharon Osbourne in recent years
LONDON, UNITED KINGDOM - JUNE 19: Sharon Osbourne attends the X Factor Auditions on June 19, 2016 in London, England. (Photo by Alex Huckle/Getty Images)
LONDON, ENGLAND - JULY 09: Sharon Osbourne arrives for X Factor auditions at Wembley Arena on July 9, 2016 in London, England. (Photo by Luca Teuchmann/WireImage)
BEVERLY HILLS, CA - MAY 23: Sharon Osbourne attends the Jewish Family Service of Los Angeles 23rd Annual Gala Dinner at The Beverly Hilton Hotel on May 23, 2016 in Beverly Hills, California. (Photo by Tibrina Hobson/Getty Images)
HOLLYWOOD, CA - MAY 12: Sharon Osbourne attends the Ozzy Osbourne and Corey Taylor special announcement at the Hollywood Palladium on May 12, 2016 in Hollywood, California. Ozzfest and Knotfest are joining together for a weekend of music September 24th and 25th in San Bernardino, California. (Photo by Kevin Winter/Getty Images)
TV Personality Sharon Osbourne attends the press room for the 2016 Daytime Emmy Awards at Westin Bonaventure Hotel on May 1, 2016 in Los Angeles, California.
HOLLYWOOD, CA - MAY 12: Ozzy Osbourne and Sharon Osbourne attend the Ozzy Osbourne and Corey Taylor special announcement press conference on May 12, 2016 in Hollywood, California. (Photo by Tibrina Hobson/WireImage)
LOS ANGELES, CA - MAY 01: TV Personality Sharon Osbourne attends the 2016 Daytime Emmy Awards at The Westin Bonaventure Hotel on May 1, 2016 in Los Angeles, California. (Photo by Paul Archuleta/FilmMagic)
LOS ANGELES - APRIL 21: Actor Joel Kinnaman discusses his television series on 'The Talk,' Friday, April 22, 2016 on the CBS Television Network. From left, Carnie Wilson, Sara Gilbert, Joel Kinnaman, Sharon Osbourne, Aisha Tyler and Julie Chen, shown. (Photo by Sonja Flemming/CBS via Getty Images)
LOS ANGELES - APRIL 14: Oscar-winning actress Sally Field discusses her new film, Hello My Name Is Doris on The Talk Thursday, April 14, 2016 on the CBS Television Network. From left, Sheryl Underwood, Sara Gilbert, Sally Field, Sharon Osbourne, Aisha Tyler and Julie Chen, shown. (Photo by Ron P. Jaffe/CBS via Getty Images)
HOLLYWOOD, CALIFORNIA - APRIL 11: TV Personality Sharon Osbourne attends the ceremony to honor Cyndi Lauper and Harvey Fierstein each with a Star on The Hollywood Walk Of Fame on April 11, 2016 in Hollywood, California. (Photo by Paul Archuleta/FilmMagic)
Singer Cyndi Lauper(L) and and Sharon Osbourne attend the Hollywood Walk of Fame double star ceremony honoring Lauper and actor Harvey Fierstein in Hollywood, California, on April 11, 2016. / AFP / STR (Photo credit should read STR/AFP/Getty Images)
BEVERLY HILLS, CA - MARCH 12: TV personality Sharon Osbourne speaks onstage during the Family Equality Council Impact Awards on March 12, 2016 in Beverly Hills, California. (Photo by Tommaso Boddi/Getty Images for Family Equality Council)
LOS ANGELES, CA - JANUARY 08: Sharon Osbourne is seen out and about on January 08, 2015 in Los Angeles, CA. (Photo by Michael King/BuzzFoto via Getty Images)
LOS ANGELES, CA - JANUARY 06: Sharon Osbourne poses in the press room at the 2016 People's Choice Awards at Microsoft Theater on January 6, 2016 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
LOS ANGELES, CA - JANUARY 06: Sharon Osbourne poses on the press room at the 2016 People's Choice Awards at Microsoft Theater on January 6, 2016 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
LOS ANGELES, CA - JANUARY 06: (L-R) TV personalities Julie Chen, Aisha Tyler, Sara Gilbert, Sharon Osbourne, and Sheryl Underwood accept Favorite Daytime Talk Show Hosting Team for 'The Talk' onstage during the People's Choice Awards 2016 at Microsoft Theater on January 6, 2016 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)
Sharon Osbourne and Aisha Tyler of CBS' 'The Talk' ring the closing bell at the New York Stock Exchange on December 9, 2015 in New York City. (Photo by John Lamparski/WireImage)
NEW YORK - DECEMBER 7: The ladies of The Talk in New York on Monday, Dec. 7, 2015 on the CBS Television Network. From left, Sharon Osbourne and Aisha Tyler, shown. (Photo by Heather Wines/CBS via Getty Images)
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Following her hospitalization, Osbourne took one month off from her CBS talk show, during which she was transferred to another medical facility where group therapy helped her tackle her issues. While returning to work has been difficult, she credits medication and a great therapist for helping her gain a "good grip" on her condition.

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"The thought of going out of the treatment that I was in terrified me," she admitted. "I didn't want to leave. I didn't want to go out because I knew that I couldn't cope with everyday life."

"Just coming back and doing the show and going home was really tough on me, and that's why I couldn't speak about it," she continued. "I couldn't help myself, let alone anybody else, until I did get put on the right medication, eventually, and found a great therapist. Here I am like a year and somewhat later and I'm good!"

WATCH: Sharon Osbourne on Ozzy's Sex Addiction Confession: 'I'm Proud That He's Come Out and Admitted it Finally'

The setback came amid a tough time for Osbourne's health, having undergone hernia surgery in March 2015, then catching pneumonia.

She has also been grappling with marriage turmoil following her husband's alleged affair with celebrity hairstylist Michelle Pugh.

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