hugs to you ladies going through the toughest part right now. I found once the dr recognised the prob and got losec for dd things changed, but unfortunately in our case, DD is one that has gotten worse and not better. I think that is pretty rear as most grow out of it and show signs of improvement when they start solids.
I had to switch to formula. I was really sad about it, but I knew it was best for DD and also the stress, anxiety and sleep deprivation meant my milk kept drying up and after the fifth attempt at trying to build my milk supply, I couldn't do it anymore.