Overnight feedings on my left side were suddenly painful last night. Mydaughter has two new lower teeth, so I wondered at first if her latch had gotten wonky and her teeth were rubbing (it was dark and I didn't want to turn the light on to check it out), but upon inspection this morning, her tongue is still cupping the breast and my nipple looks fine (no redness/irritation/not misshapen). I don't see any white patches in her mouth. Basically, it feels like sharp pains when she's sucking and then I feel a general sensitivity between nursings. Also, if is uncomfortable to press on mybreast (like when I hold her upright on that side). No lumps or any indication of plugs. Could this be thrush? It's just on the left. Right side feels fine. Thanks!