J.C.
I had the same problem as you and I had my doctor prescribe me Reglan and my God did it ever help. It was wonderful. While pumping I went from getting barely 2 ounces from both breasts together to getting between 8-11 after starting the medicine. A lot of people haven't heard of/tried this approach but for me it was one of the few options I had. It has side effects but mine were minimal and only for the first couple days. All I experienced was tiredness. I'd ask your doctor. There are also generic brands of Reglan that also work. I really hope this helps and that your doctor can help you out. Good luck and let us know what happens:)