So I breastfeed. my little guy favors my right boob over my left one. my right boob is also fuller then my left one. I finally started pumping to build up a stash for when I go back to work. Well in the time I was able to pump out 3 oz from my right boob, I was only able to get .5 oz from my left. how can I fix this? I need to build up my milk flow in my left boob, while maintaining the milk flow in my right. I hope this makes sense.