My rt breast is so sore as of this morning. It feels like it is just bruised which I may have done holding my breast/trying to do compressions for my dd to get more milk. But I can't see any bruising. I wondered if it might be a plugged duct but I don't know what those are like. Are there any questions I should be asking to figure out what is wrong. She is nursing normally on both sides, nipples don't hurt, just the tissue above the nipple. Oh and what do I do for this? We have a heating pad if that would help.