I'm a 26yr old white male living in Central Florida area I'm 5'8" 145lb I remember having this problem riding the bus to school at 16-17 & they were so sentive & just hurt sooo badly you can feel the hard rock type stuff that's under your nipple you touch & press them they're very very soar Now I'm 26 & I have the same thing going on again with the sensitivity & under both my nipples hurting I thought I wouldn't have to deal with this again after puberty when I was younger but it's come back now & im kinda scarred & don't understand why they feel the way they had felt when I was 16-17 I'm just hoping this isn't some type of cancer ;(