Thanks again! We tried thickened formula but he got really bad on it - screamed the house down in pain. He is so happy on the lactose free formula I do not want to change it thanks. As to the Losec - we were told to trial it for a week -maybe we gave up too early? The thing is that he is totally happy when he is awake - an absolute delight. It's only for sleep time that he struggles so much...