I found 2 lumps on the right side of my breast and thickening  about 2/3 months ago but kept putting it off and putting it down to breastfeeding. I've just recovered from mastitis but still on antibiotics. I had an US on my breast today and they said the lumps are ok but there's a very enlarged lymph node in my armpit. They asked if I've had mastitis recently and I said yes so they said ok it's probably just reacting to that.

they said that if I wasn't breastfeeding and didn't have mastitis, it is something thEy would usually biopsy it. But because I'm bf and had mastitis, they believe it's not necessary to biopsy as it's likely a reactive node to the mastitis. So that obviously hasn't reassured me at all. Anybody else have any similar experience?