DS has bad reflux and have been advised by doc to start weaning him, he is nearly 6 months. We started last week and he LOVED it, he couldn't get enough and was leaning forward in his high chair to try and get to whatever I made for him. Then this last week it is totally done an about turn and he now refuses to eat anything and will squirm and scream if I try and offer him food, what's happened and what can I do?