She said: "I'd been saying goodbye and preparing for the end. It was heartbreaking to tell my daughters Mummy was going to die.
Lisa was diagnosed with small cell lung cancer in 2009. Its 94 per cent death rate is one of cancer's highest.
"We splashed out on a luxury villa using our wedding present money and savings," she said.
She wrote goodbye letters to them and her husband, telling them how much she loved them and assuring them she would always watch over them. She tucked them away with instructions to be opened after her death.
Lisa says: "I wanted them to know I would always be with them, regardless."
But her words were to come true in a way she could never have imagined.
In April last year - three years after her original diagnosis - she went for a routine biopsy - and was given the astonishing news that her tumour had shrunk so much the doctors couldn't find it.