My boob is so sore!! Not the nipple my actual boob all down and under my right side, feels so tender like a bad bruise, it was really engorged and lumpy so my 6wk old had a super feed from it and Ive kneaded it so doesn't feel as lumpy but ouch! Hurts when I stand or touch it. I've also started to get little pains like stabbing/shooting pains across both nipples. It was all going so well! Any advice?