Christian's parents though he would never walk or talk. Now he sings and dances his way through therapy.

Nikita was born with biliary artesia - an incurable condition. She will need a liver transplant one day.

Rylee's mum was horrified to find her little girl had woken up completely limp on one side.

Samantha went through leukaemia treatment when she was three - including Christmas in a hospital bed.