A mum-of-four lost half her body weight after she couldn't get up out of a chair to use the loo.
Janet Lewis weighed 22 stone at her heaviest, but she's shrunk to 10 stone 10lb after joining a Cardiff slimming group in July 2017.
Janet, 53, says she knew things needed to change when her partner had to help her out of the chair to go to the loo.
She said: "I couldn't carry my own body weight, so my partner had to help me to the toilet.
"I was crying that I was going to wet myself. That was the turning point for me."
Janet almost died of cervical cancer at the age of just 26, but her weight problems began when she gave birth to her son, Ray, more than three decades ago.
She said: "I tried all the fad diets but I just couldn't keep the weight off."
When her father Robert Selby died suddenly of suspected pneumonia four years ago, Janet said she struggled to come to terms with it.
She said: "It was horrific. I couldn't deal with anything. My mum came to stay with me but we just ended up eating badly together.
"We'd go to town and eat cake, then we'd just sit in the house together."
The death of her father, coupled with the embarrassment of being unable to support her own body weight, drove her to join Slimming World.
She said her consultant Rob Phillips was a real driving force in her quest to get slim - and stay that way.
Janet said: "Rob never gives up on me. Even when I come back from holiday and put on some weight, I prove to him that I can get it off again.
"My motto is to 'eat myself slim'. I make sure I stick to the Slimming World food optimisation plan by making loads of food myself, including homemade KFC and cheese burgers with bacon.
"And my children love my Chinese food."
In addition to Janet losing weight, her daughter Carla Ingram, 31, has also shed an impressive 7st.
But Janet, who admits to never exercising, confesses that she still hasn't come to terms with looking thin.
She said: "I still instinctively go for the large size in clothes shops, some days I look in the mirror and I don't realise it's me in the reflection.
"My husband Byron has also been my rock throughout this slimming journey."
