Hi there,
Welcome. I feel for your little Nico my dd has reflux too.
first of, Neocate was a big help for my DD’s projectile vomiting. It took like two weeks to see any improvement. She also was hard to feed. she ended up with a NG tube and we only changed it evrey 3 weeks or when she pulled it out(not very often, but she did). I changed it myself. the ped taught me how to do it. The first time was scary, but then you get used to it. She now had a G-tube. I hope his surgery goes well. My dd slept on a tucker sling (elevated 30 degree) and that helped her reflux. Good luck with everyhting.