Christine Wickham, from Woodingdean, Brighton, has made a tremendous sacrifice to enable her son Nicholas to live a long and healthy life.
She has donated a kidney to him so he will no longer need dialysis or have to take a cocktail of pills every day.
The operation caused her pain and suffering - but it was worth it when she saw her son's smiling facen.
She has also heard many times the two words that mean so much to her. They are: "Thanks, Mum."
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