N.S.
it's totally normal. I've had it many times and then my breast is sore. Just keep on nursing on that breast like normal. Continue like you were before. If it hurts then use lanolin on your breast nipple and showers can help too. Massaging the breast under warm water is soothing for the pain if it gets really bad. But it'll clear up over the next days. Sometimes it lasts longer. Good for you for breastfeeding!!!