Yeah Nicky, I think Tracey might be on to something, he sounds alot like what Jack was like to, and he has both reflux too. He didn't always throw up to begin with, actually not at all, that didnt start until a few weeks ago, but what I have come to learn is that he was throwing up but swallowing it again, which was burning him inside (poor little thing). But definately something to ask about, you don't want to leave it too late like I did. Jack is a different baby now
Good Luck.