Hugs, have been there, and it is rough

I also have a lo who has bad reflux and was a terrible sleeper for the first few months until we finally got the correct medication and dosage for him...then within 2 nights (seriously), he slept like a dream! And slept through the night almost consistently until his dosage needed changing again. Of *course* there are many other reasons why a baby can be waking many times in the night, but when your lo has reflux unless this is pretty much under control it is VERY hard to tackle the other things (overtiredness, routine issues, props etc etc) as they are in pain and it's hard to sleep when in pain

. He is obviously overtired since he is sleeping so little, and of course that adds to the difficulties.
What medication and dosage is you lo on for reflux? How long has he been on it, and have you felt it ever made a difference?
I would do any kind of 'accidental parenting' to get him to sleep at the moment - naps in the car, upright in a sling, holding him to sleep etc - as he just needs to get as much sleep as possible. Make sure his room is pitch black and use white noise if it helps. Really *anything* that will help him sleep!! You probably are doing this already - but keeping them uproght for 30 mins after feeds, and propping their cot up on some books helps. Also, when winding them not being too vigorous, and also not rocking them to sleep (as it may bring acid back up).
I personally wouldn't worry too much about the paci at the moment, but others might have another helpful perspective. Obviously it is causing some issues, but if it soothes him when he is pain then perhaps it is good for him to have it. I know it helps many lo's with reflux, and my ds had one for this reason.
Claire xx