Tanya Jones had a heart transplant at the age of 21 when her heart "collapsed" during the birth of her daughter Kaley in 1987.

She says: "I had been a gymnast since I was six, rode regularly and hardly ever even had a cold, but suddenly I was in terrible pain, couldn't breathe and I felt as if someone had blown me up with an air pump."

"I also felt incredibly claustrophobic and panicked. "

"Somehow I managed to calm myself and gave birth naturally. "

"Afterwards I looked in my small make-up mirror and saw my mouth was blue and that I looked grey."

"I called a nurse, who ran to get a doctor. I was wrapped in tinfoil and taken to intensive care."

"At first they didn't realise what was wrong. My life was saved by chance when a heart specialist walked into the unit, glanced at me and said my heart had collapsed. "

"I was rushed to Harefield and told I needed a heart transplant. "

Tanya's new heart is now 21 years old ... the current UK record is 27 years.