My little girl has been a wonderful eater right from when we started weaning. She would eat any kind of pasta dish, curries, risotto, a roast dinner etc... Until 2 weeks ago! She now takes a couple of mouthfuls and then gets annoyed and won't eat any more, unless it's toast or fruit, or sometimes a yogurt. She usually feeds herself but spoon feeding isn't working either. I'm starting to worry a bit. Is this likely to pass, and what should I do?