I'm getting concerned as my 3mth old, exclusively formula fed is not wanting any of his feeds. He is in a lovely little routine but for some reason over the past week he just hasn't been wanting feeds. He'll even turn away for his morning feed when he hasn't had anything practically all night (apart from a few oz at 3am). After a lot of perseverance I'm usually able to get a bottle of 5oz down him but it can take hours. He doesn't seem in pain or uncomfortable he just smacks hand away, turns head or plays with the teat, can't recall the last time he actually cried because he was hungry. Any thoughts?