The 49-year-old mum-of-two was running up the stairs to amuse her children when she tripped and “smashed” her head on the toilet lid.
She later admitted that she thought it was the end, while sharing pictures of her injury on Instagram.
The cut required a number of stitches both internally and externally and has left her with a facial scar.
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“It was a bad one and I was very grateful that the impact went down the centre of my forehead.
“As I found out from the doctors, if it had been slightly to either side, I might not be here now because the skull is thin in those parts.
“The irony isn’t lost on me that I used to jump out of planes and all sorts, and yet I injure myself in this way,” she told The Sun.
“The irony that I spent my early career throwing myself out of planes, flying fast jets and generally doing all I could to put myself in danger wasn’t lost on me.
“The head injury? Bringing the morning lols with my daughter Kaya, racing her to the loo to bring the mummy fun then tripping and face planting the toilet lid. FULL FORCE.
“It was the scariest thing that’s ever happened to me, largely because it was in the safety of my own home, bringing the fun, at 7.30 in the morning and, as I waited for the ambulance to check me I truly thought it was the end.”