So LO has breastfed like a champ from day one, and therefore I've never had sore nipples (yes, I am so grateful for this!). I started pumping yesterday, and THAT hurts my nipples. I have a Lansinoh Affinity double pump. I have kind of big nipples, and they just about "fill" the flanges, so I'm wondering if maybe I need to get bigger flanges? Has anyone else ever had pain with pumping when bf'ing goes well? Any thoughts or suggestions?