Christine and Paddy McGuinness’ youngest daughter Felicity, three, has been diagnosed with autism, three years after their twins, Leo and Penelope, six, were diagnosed with the developmental disorder. Christine, 31, confirmed that little Felicity has been diagnosed with autism, after she and husband Paddy, 46, have suspected it for years.The model previously said that though Felicity has ben showing signs of autism, she couldn't be diagnosed until she was three years old.