I'm hoping you mommas can weigh in.
My baby learned how to take a bottle and then started getting mad at the beast until let down happened. I started having sore nipples after nursing and sometimes pain inside the nipple at other random times. Nothing white in baby's mouth.
I spoke to my lactation consultant who said it sounded like nipple crunching and and not thrush.
Next day I had a red rash on one breast, not the areola. I went to my general doctor for another issue and she said it didn't look like thrush but she wasn't sure.
Today itchy red rash on both breasts, still not on the areolas, nipples are fine, nothing I can see in babies mouth. We have not changed detergents or anything. I still have nipple soreness.