R..
I have noticed that with my right. My DD is now 11 months, and my right is about 1/2 the size of my left (I just triple up on nursing pads to 'even them out' lol) It sucks. It DOES still produce, but not much at all. I have tried a few things, but so far the only thing that helps is to start her on that side, then switch her... then when she slows to the 'almost done' part of nursing, I switch her back. Lol. I tried pumping between feedings on only that side, and it did help some, but not enough to make it worth my time.