I'm breastfeeding an older child (2 years) and I've noticed a flat area like a thumb print or slight indentation under each nipple. Does this sound familiar to anybody? Could it be breastfeeding related? I'm panicking about it because googling breast indentation brings up scary things. I'll ring GP tomorrow. When I raise my arms etc I can't see it, I can only see it when I hold my breast and look down at my nipple that way ie I can't see it reflected in the mirror when standing normally or raising arms.