Just been drs , for nipple pain over a week and I think it happens every month before period. But this month has been so painful . Drs felt breast said she couldn’t feel any lumps  I have extra breast tissue in armpit and that feels achy as well.  feels like it’s warm inside of  you get what I mean?  On examination the drs could see anything that was a cause for concern but still I’m anxious bees send for an ultrasound to check.