One of my boobs doesn’t fill completely when my milk comes in. It feels full with milk round about half of it. I have a small lump behind the nipple on that breast which I showed the doc a couple of months ago when I noticed it/it appeared and she said she wasn’t at all worried about as it would be milk related and didn’t feel hard. I went back last week and am now due to get this breast checked at the hospital but am getting paranoid that the lack of filling with milk on this boob could be an ominous sign. Have other people had this? There is no tenderness and this boob has always produced less milk (baby now 10 months old).