HEARTBROKEN TV star Simon Thomas revealed the devastating moment he broke the news to his wife's death to their 10-year-old son.

Gemma Thomas had visited her GP several times as her health worsened but doctors failed to diagnose her condition.

She died of acute myeloid leukaemia (AML), a cancer of the white blood cells.

Mr Thomas, from Reading, revealed on TV today (Tuesday) how he has since forgiven doctors who failed to spot the signs for cancer.

But he also spoke about the traumatic moment when he broke down in tears while explaining to his son, Ethan, what had happened.

He told This Morning: "I thought, I have to tell him his mum is gone.

“I looked into his deep brown eyes and I collapsed on the floor and held him and just cried with him."

"She was really quite bad,” he told Phillip Schofield and Holly Willoughby.

“For her to be in bed was quite unusual.

“I could understand why he didn’t think anything was wrong.

"He was acting only on what he saw and was told.”

The Sky Sports presenter also praised a fundraising event held in Gemma's memory at Sonning Primary School last week.

He posted a heart-felt message on Twitter expressing his gratitude.

Mr Thomas posted: "So touched by the love and generosity of so many at Ethan’s school @SonningPrimary tonight.

“A night of fun, food and fundraising in memory of my lovely Gemma. Thank you so so much. #lightinthedarkness.”

The former Blue Peter presenter recently described Gemma as “my soul mate, my rock, the wind beneath my wings and a beautiful mum”.

Mr Thomas wants to raise awareness of blood cancer symptoms among GPs and the general public.

Gemma Peters, chief executive of Bloodwise, added: “We are so grateful to Simon for sharing his personal story to raise awareness of blood cancer.

"Acute myeloid leukaemia is a highly aggressive type of blood cancer which often develops rapidly. Survival rates remain unacceptably low in the UK with only 15% of patients surviving for 5 years, and so early diagnosis is absolutely crucial."