There is a pin size spot on the border of my aereola that has been bleeding off and on for over two weeks now. Every day when I change clothes there is blood in my bra. The past few days I’ve been able to see where it’s coming from (because it’s still bleeding). The nipple on that same side also seems extra sensitive lately. I haven’t had any injury or trauma to the area and really have no idea what it could be. Any ideas?

Side note, I’m not breastfeeding and my last child was born 18 months ago.