One area of my breast is tender and sore to the touch..its definitely not severe and it doesn't hurt to nurse, and I don't feel any lumps. There is no redness so I don't think it is mastitis (plus I think mastitis would hurt a lot more than this) I also have a low grade (100.9*) fever <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/greensad.gif" style="border:0px solid;" title="greensad"> (fever is bothering my more than the soreness) I was a little engorged on that side for a good part of yesterday. One weirdness was, last night we went to see a movie and I was pretty engorged in the car on the way there (it was a little sore, but attributed that to engorgement) so I nursed her as soon as we got our seats. It was SO soft and "deflated" within just a couple minutes! When its that full it usually takes like 2 nursing sessions to soften it even close to that much. It refilled right back up (not as full as before) before the movie was even over. Thats a little..weird.