hi, our 19 month old son is intolerent of lactose and has become a very picky eater . Although he will give most foods a try he will only eat about 6 to 10 mouthfulls in a meal. He has never been a big eater , even when he was bottle fed he would only ever manage 5 oz. He did drop several pertentiles but has started to pick up as he is no longer sick several times a day. We have tried everything and are getting desparate, this also effects his sleep as he still doesnt sleep all night. can you help us?