It's not that she doesn't nurse on my left side, because she definetly does. But it seems like she has more trouble latching on that side, and tends to make faces, crinkle her nose, until she actually gets a good hold of the nipple. The other breast she has no problems latching onto and seems to do it quite well, nurses much better on that side too. The other side she never seems to be totally comfortable or 'at rest' while nursing on the left side. she does get milk, as i can tell by her swallowing, and it leaking out of her mouth at the end of the feeding. This breast has always been just a tad bigger than the other, so i don't know if maybe she has more trouble getting the nipple, due to more breast tissue or for some other reason..