Ahhh, okay! I was like--but mastitis is the thing you get from breastfeeding! I have to say, I was raised with the impression that breastfeeding is something you do if you can't afford formula, and while I've never heard anyone complain about not breastfeeding (I mean in terms of the symptoms--people complain about not being *able* to breastfeed), I've heard people complain a lot of about breastfeeding. It sounds massively uncomfortable and awful, and I decided early on I wanted no part in it, even if someday in the future I unexpectedly changed my mind about not wanting kids (spoiler: I didn't).