Hi Fiver, thanks heaps for your advice. Just thought I'd keep you updated. We took DD to our gp yesterday cos she had stuffed nose all the time. After chatting to her about our feeding problem. She thinks DD actually has reflux, so we were given Zantac. The change was dramatic, she started feeding well, and she slept for 7 hrs (first time ever). I wish we could have identified the real cause earlier.