TV star Mel Schilling has said doctors have told her there is "nothing further they can do" to treat her cancer.
The 54-year-old Married At First Sight expert said the disease has spread to the left side of her brain, adding that her "light is starting to fade".
Schilling, who is best known as a relationship coach on Married At First Sight, was treated for colon cancer in 2023.
However, a routine scan months later found "small nodules" in her lungs, which have since spread to parts of her brain, causing what she described as "blinding headaches and numbness" down the right side of her body.
Schilling said that, while filming Married At First Sight, she underwent 16 rounds of chemotherapy followed by radiotherapy, and has now been told there is nothing further doctors can do to treat the cancer.
In a post on Instagram on Thursday, she said her "world changed" in an instant after learning the cancer had spread.
She wrote: "Over the past two years, while filming MAFS, I underwent 16 rounds of chemotherapy and was later told I was eligible for a groundbreaking clinical trial specific to my gene type, due to start in March 2026. Once again, my optimism soared that I might beat this thing.
"Over Christmas, however, I began experiencing blinding headaches and numbness down my right side.
"After many tests I was told the cancer had spread to the left side of my brain and, despite subsequent radiotherapy sessions, my oncology team have now told me there is nothing further they can do.
"Hearing those words changes everything.
"My light is starting to fade, and quickly. But I am still here, still fighting, and surrounded by the most incredible love."
She added: "Simple tasks have become incredibly difficult and I am relying on my beautiful family to look after me. I honestly don't know how long I have left, but I do know I will fight to my last breath and will be surrounded by the love and support of my people."
Schilling also thanked people for their messages of encouragement and support, saying they had helped "shape the mindset" she needed to "keep fighting".
She added: "If I could leave you with one thing, it would simply be this: if something doesn’t feel right, please get it checked out. It might just save your life."
It comes after Schilling announced she would be stepping back from the Australian version of the programme after 12 seasons on the expert panel.
In a statement shared online, Channel 4 said Married At First Sight Australia expert John Aiken will step in for Schilling for the remainder of the UK series, which is currently being filmed.
The broadcaster said: "All of us at Channel 4 are immeasurably saddened by the news about Mel’s health, and are sending all of our love and support to Mel and her family.
"Over five series of Married At First Sight UK, and twelve series of Married At First Sight Australia, Mel has become a hugely valued and much-loved part of the Channel 4 family. To many of us she is a friend as well as a colleague.
"Her wisdom, warmth, humour and kindness shine through, and these qualities mean that everyone involved in MAFS, from the producers and contributors to the viewers, love and respect her as much as we do.
"MAFS UK is currently filming and, with Mel’s blessing, her good friend and fellow MAFS Australia expert, John Aiken, has done us the great favour of stepping in for her for this series."
CPL, the production company behind the UK version of the dating show, also said it was "shocked" and "deeply saddened" to learn of her diagnosis.
It said: "She is not only a valued colleague but a dear friend, and has played an integral role in the success of Married At First Sight over many years.
"Mel is greatly loved and respected by everyone at CPL, and our thoughts are with her and her family as they face this profoundly difficult time.
"We are sending our love, strength and unwavering support."
Source: Press Association
