Polly Tommey with her autistic son Billy.
A few weeks ago, a one-woman campaign culminated in Polly Tommey meeting the Prime Minister to improve support for the families of children with autism.
She was fighting for the sake of thousands of other parents around the country, having become an unofficial 'Good Samaritan' for the desperate parents of autistic children.
Here, Polly, 42, the mother of an autistic child, tells her extraordinary story . . . months that was the case with Billy.
Any normal child would have been taken to A&E at some point and given a battery of tests, but with autistic children doctors say it's just part of their autism.
Billy stopped eating most things, and eventually all that was left in his diet was cow's milk and Weetabix. He was so skinny his hair started falling out, and he had sores all over his lips and up his arms.
Then, one day, a leaflet dropped through my door explaining how a wheat and dairy-free diet could help autistic children. Jon was sceptical, but I thought it was worth a try.