'Flip or Flop' star Tarek El Moussa reveals he's still cancer-free three years after diagnosis


Despite his messy split from his wife, Christina, Tarek El Moussa is staying positive.

The Flip or Flop star, who was diagnosed with thyroid cancer in 2013, took to Instagram on Wednesday to reveal he's still cancer-free, three years later.

WATCH: Christina El Moussa Says She's Making Time for 'What's Really Important' Amid Divorce

"Still #cancer#free!!!!" he captioned a screenshot of a text exchange between him and his doctor. "Having cancer is a very scary thing... I always get nervous going into each checkup, and today I got GREAT news!! Having no thyroid and balancing medications is tough! I'm finally at UCLA and I'm on the right doses of medication."

See photos of Tarek and his ex, Christina, together:

18 PHOTOS
'Flip or Flop' couple Christina El Moussa and Tarek El Moussa together
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'Flip or Flop' couple Christina El Moussa and Tarek El Moussa together
PASADENA, CA - APRIL 30: TV Personalities Tarek El Moussa (L) and Christina El Moussa (R) attend the press room for the 44th annual Daytime Emmy Awards at Pasadena Civic Auditorium on April 30, 2017 in Pasadena, California. (Photo by Paul Archuleta/FilmMagic)
PASADENA, CA - APRIL 30: TV Personalities Tarek El Moussa (L) and Christina El Moussa (R) attend the press room for the 44th annual Daytime Emmy Awards at Pasadena Civic Auditorium on April 30, 2017 in Pasadena, California. (Photo by Paul Archuleta/FilmMagic)
PASADENA, CA - APRIL 30: Tarek El Moussa and Christina El Moussa present the award for outstanding entertainment news program at the 44th annual Daytime Emmy Awards at Pasadena Civic Auditorium on April 30, 2017 in Pasadena, California. (Photo by Michael Tullberg/Getty Images)
NEW YORK, NY - SEPTEMBER 15: Tarek El Moussa and Christina El Moussa attend Tarek and Christina, TV's Favorite House Flippers, Featured at TREND/Stone Source Event in New York on September 15, 2016 in New York City. (Photo by Sylvain Gaboury/Patrick McMullan via Getty Images)
NEW YORK, NY - SEPTEMBER 15: Tarek El Moussa and Christina El Moussa attend Tarek and Christina, TV's Favorite House Flippers, Featured at TREND/Stone Source Event in New York on September 15, 2016 in New York City. (Photo by Sylvain Gaboury/Patrick McMullan via Getty Images)
NEW YORK, NY - SEPTEMBER 15: Tarek El Moussa and Christina El Moussa attend Tarek and Christina, TV's Favorite House Flippers, Featured at TREND/Stone Source Event in New York on September 15, 2016 in New York City. (Photo by Sylvain Gaboury/Patrick McMullan via Getty Images)
LAKEWOOD, CA - DECEMBER 13: Tarek and Christina El Moussa, hosts of HGTV's hit show Flip or Flop, visited the HGTV Santa HQ at Lakewood Center. The reality stars visited with Santa, toured the new digital Santa headquarters and celebrated the holidays with fans on December 13, 2014 in Lakewood, California. (Photo by Jerod Harris/Getty Images for Lakewood Center)
LAKEWOOD, CA - DECEMBER 13: Tarek and Christina El Moussa, hosts of HGTV's hit show Flip or Flop, visited the HGTV Santa HQ at Lakewood Center. The reality stars visited with Santa, toured the new digital Santa headquarters and celebrated the holidays with fans on December 13, 2014 in Lakewood, California. (Photo by Jerod Harris/Getty Images for Lakewood Center)
MIAMI BEACH, FL - MARCH 12: Jason Langford, Christina El Moussa & Tarek El Moussa of HGTV's 'Flip or Flop', new North American brand ambassadors, and Jamie Diaz attend the TREND Group and Granite Transformations global rebranding and ?Immense? product collection launch event at Temple House on March 12, 2016 in Miami Beach, Florida. (Photo by Alexander Tamargo/Getty Images)
MIAMI BEACH, FL - MARCH 12: Christina & Tarek El Moussa of HGTVâs âFlip or Flop,â new North American brand attend the TREND Group and Granite Transformations global rebranding and âImmenseâ product collection launch event at Temple House on March 12, 2016 in Miami Beach, Florida. (Photo by Alexander Tamargo/Getty Images)
MIAMI BEACH, FL - MARCH 12: Christina & Tarek El Moussa of HGTV's 'Flip or Flop', new North American brand ambassadors, attend the TREND Group and Granite Transformations global rebranding and âImmenseâ product collection launch event at Temple House on March 12, 2016 in Miami Beach, Florida. (Photo by Alexander Tamargo/Getty Images)
MIAMI BEACH, FL - MARCH 12: Kenya Moore of Bravo's 'The Real Housewives of Atlanta', Christina El Moussa and Tarek El Moussa of HGTV's 'Flip or Flop', new North American brand ambassadors, attend the TREND Group and Granite Transformations global rebranding and ?Immense? product collection launch event at Temple House on March 12, 2016 in Miami Beach, Florida. (Photo by Alexander Tamargo/Getty Images)
TV hosts Tarek El Moussa , right, and his wife Christina El Moussa, second from right, talk during filming of HGTV's 'Flip or Flop' reality TV show as they discuss what to do with this recently purchase house in Whittier on July 19, 2013. The single story 3 bedroom, 1 bath, 1,112 sq. ft home was purchased for $275,000 cash in a short sale. They will put up to $40,000 into fixing it up and hope to sell for $350,00- $400,000. It came with a bonus room. It was discovered the bonus room had a bad foundation and was demolished. They also discovered mold between the walls. (Photo by Anne Cusack/Los Angeles Times via Getty Images)
ANAHEIM, CA - JULY 2, 2014: Husband and wife team Tarek,right, and Christina El Moussa help contractor Steve Cederquist pull down a terminate invested trellis in the backyard of a home during the filming of an episode of 'Flip or Flop' on July 2, 2014 in Anaheim, California. (Photo by Gina Ferazzi/Los Angeles Times via Getty Images)
LAKEWOOD, CA - DECEMBER 13: Tarek and Christina El Moussa, hosts of HGTV's hit show Flip or Flop, visited the HGTV Santa HQ at Lakewood Center. The reality stars visited with Santa, toured the new digital Santa headquarters and celebrated the holidays with fans on December 13, 2014 in Lakewood, California. (Photo by Jerod Harris/Getty Images for Lakewood Center)
MIAMI BEACH, FL - MARCH 12: Christina El Moussa of HGTV's 'Flip or Flop', new North American brand ambassador, attends the TREND Group and Granite Transformations global rebranding and âImmenseâ product collection launch event at Temple House on March 12, 2016 in Miami Beach, Florida. (Photo by Alexander Tamargo/Getty Images)
MIAMI BEACH, FL - MARCH 12: Christina El Moussa and Tarek El Moussa of HGTV's 'Flip or Flop', new North American brand ambassadors, attend the TREND Group and Granite Transformations global rebranding and âImmenseâ product collection launch event at Temple House on March 12, 2016 in Miami Beach, Florida. (Photo by Alexander Tamargo/Getty Images)
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"People don't know but I was very over medicated with rapid heart rate and palpitations to the point where I wore a heart rate monitor," he continued. "It really messed me up but today everything is dialed and I finally feel great after 3 years!!"

WATCH: Tarek and Christina El Moussa's Shocking Split: Everything We Know About the 'Flip or Flop' Couple

The news comes just a few weeks after El Moussa filed for divorce from his wife of nearly seven years. The former couple, who will continue to co-hostFlip or Flop together, announced they had separated in December following a heated fight that led to the police getting called out to their Orange County, California, home back in May.

As ET previously reported, El Moussa revealed he "probably would've never known" that he had cancer if it weren't for a fan, nurse Ryan Read, who spotted a lump on his neck while watching the popular HGTV show.

"It was just such an amazing experience to meet this person, because she stepped up and did what others probably wouldn't have done," he told The Insider in November 2015. "By the time that I would've found out [about the cancer], it probably would've been in a much further stage."

WATCH: Tarek El Moussa Was Diagnosed With Cancer After a Fan Spotted a Lump on His Neck

"It really hit me hard," he continued. "It hit my family hard, and it was just a really scary thing."

Hear more in the video below.

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