Leah Finlayson from Addingham in West Yorkshire says she was "stunned" to be diagnosed with tongue cancer.
She is urging people to highlight any suspected symptoms with GPs and dentists to raise awareness of the disease.
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Police have charged a 29-year-old French man with the murder of a British backpacker in Australia.
If given the green light, a year-long trial scheme will begin in the new year.
Last year their was a rise in pupils getting Grades A to C but a fall in teenagers being awarded A* grades.