LO has been a great nurser from the get-go. She's gaining weight like a champ. In the past week or so, I've noticed that she's changed her latch a bit... but only for my left boob. She has a perfect (according to LC/literature/etc) latch on the right, but these days won't open her mouth as much for the left. It definitely left me with a sore boob for a few days, though that seems to have passed for the most part. I know that as long as I have no pain and she's getting enough to eat everything is fine, so I'm not too worried. Has this happened to anyone else?