We are having real problems with our five year old who has issues with food. Eats a very restricted diet, will refuse to eat rather than eat something she doesn't want, won't tell us what she wants if asked, takes ages to eat what little she does have and now cowers when food is even mentioned. Been going on for about eight months but getting worse - we've tried everything from not making an issue of it to reward charts but she's now visibly losing weight. She fed and weaned fine as a baby and her older sister (9) eats well. Help!