Kellie Maloney was recently rushed to hospital after collapsing in the \'Celebrity MasterChef\' kitchen.
The 66-year-old boxing promoter - who was known as Frank Maloney prior to undertaking gender reassignment - has revealed she lost consciousness due to the "stress of filming" the popular BBC show.
She told the Sunday Mirror newspaper: "Mentally I got exhausted. I wanted to go home but they wanted some more filming.
"The next thing I knew I was on the floor with all my fellow celebs and the judges around me."
According to medical experts, Kellie was lucky to have avoided suffering a stroke.
She said: "When they took my blood pressure I was 240 over 180. The paramedic said they couldn\'t believe I hadn\'t had a stroke. I didn\'t want to go to hospital but they said I had to and rushed me there in an ambulance."
Kellie can\'t remember many specific details about the day she collapsed.
But the promoter - who previously starred on \'Celebrity Big Brother\' in 2014 - was supported through her health scare by fellow contestants Vicky Pattison and Olympic gold medallist Greg Rutherford.
Reflecting on the scary experience, Kellie explained: "I can\'t remember much about that day. But I got some nice texts from Vicky and Greg checking I was okay."