Hi everyone, thanks everyone for all your advice. Im pretty certain its reflux now (both some visible and some silent), so knowing this I am slowly finding some answers that work for us (sort of).
Im making sure he has a good full feed every 3hrs (both breasts with lots of breaks and burping in between and keeping him upright a lot, even letting him sleep upright on me for half and hour after feeds), and then filling in any other unsettled times where he wants the boob with a dummy in between. Its not ideal as they say to wait 6 weeks to give a dummy until breastfeeding is fully established. He's only 5 weeks, plus we lost the first week in hospital where I barely got any breastfeeding in, but I think all the overfeeding he's trying to do at the boob has just been making it all much worse. Ive also discovered the reflux is a lot worse when I eat some particular foods such as onions.. so its a bland boring diet for me!!
And its back to the osteo next week, am looking forward to that as I definitely saw an improvement after the last treatment.