Hi Rachel,
May I know which PD you went to? My boy also has acid reflux problem like yours, refuse to drink milk, fuss and made lots of noise when put teat into his mouth...really don't know what to do with him. If we force him to drink, he will throw up later. So now, no choice, sometimes have to use dropper to feed him ar! In the past, he used to be heavier than his twin sister, but no longer now. You mentioned your boy taking losec, what is that? Can buy from pharmacy?