A SERIOUSLY-ILL little girl has celebrated a "milestone" birthday – but her parents say they are still in the dark about her mystery condition.Harriet Gregory was born with an illness which left her with multiple health problems, including an inability to suck or swallow and a low immune system.She needed an emergency tracheotomy shortly after birth to enable her to breathe and, at 16 months old, had 11 hours of lifesaving surgery to correct a curve in her back.The youngster has...
