Apart from still needing a feed around 3.30am, he frequently wakes between 1 and 4 further times screaming and goes on until he's hugged back to sleep. Sometimes he just needs to burp. On rare occasions we resort to Calpol. He's teething now but this has been pretty much been going on since he was born. Medical advice is that he has an immature digestive system and will grow out of it. Meanwhile we are sleepless and often at the end of our tether. Our dd was sleeping through at 3 months, we don't know where we've gone wrong this time. Help!