Has any one got any ideas what this could be? My little chap had a few problems feeding and would only feed in bed lay down. He's 4 months old now and was starting to feed great with me sat up. But the last few days he will turn his head and arch his back, so then I think he does want any more milk and sit him up. But then he starts rooting and looking like he wants more! So then we end up having to go back lay on the bed. 