Mastitis makes you feel awful! You feel sick, fatigued and have a fever and it's very painful. your breast will feel hot and heavy and very tender. it'll have red streaks on it, too. There is usually a hard lump in the breast somewhere from a blocked duct (most common cause of mastitis). it won't go away with pumping/nursing. in fact, it won't go away at all until you start antibiotics. Mastitis can go from "just mastitis" (if there is such a thing!) to an abcess VERY quickly so if you think you have it go see your doc ASAP!
Engorgement can feel uncomfortable, hurt a little even, but it goes away when you pump/nurse (or soon after). You don't have the tired achiness of the fever and infection and engorgement won't cause red streaks 9though the only place i got stretch marks was on my breasts from engorgement, so you can get those)
at 12:41 AM on Jan. 22, 2009