“When Helena’s health suddenly started spiralling downwards and towards certain kidney failure, the race was on to find her a suitable living donor for a new kidney.
“Pan ddechreuodd iechyd Helena ddirywio’n sydyn iawn, gan garlamu’n anorfod at fethiant arennol llwyr, roedd hi’n ras wyllt i geisio dod o hyd i roddwr byw addas i roi aren newydd iddi hi.