I have a 2 month old, and I have been exclusively breast feeding. One of my breasts is larger and feels like it is engorged again. It is sore, but not red. Maybe a little warmer than the other, but it doesn't seem feverish. This has happened twice now, and the last time it went away after a few days. Has anyone else experienced this? Could it be mastitis? It is frustrating mostly because it is uncomfortable, but I can't say that I like being lopsided. Help!