A SINGLE mother is struggling to cope with her twin boys who suffer from an extremely rare condition – which makes them eternally hungry. Stevie and Eddie Ahern were born with Prader-Willi Syndrome and autism, a devastating combination that leaves them prone to extreme anger and violent outbursts. The twelve-year-old, thirteen stone boys are becoming increasingly stronger and more stubborn meaning their mother Dianna Schatzlein-Ahern, 55 is considering involving the authorities. In order to stop them eating she has to lock up her refrigerator, cupboards, cat food and even cleaning products – which they have been known to try and drink.