Sometimes my nipples are flat and sometimes they're pointy. is this normal?
I am a female. I woke up today and thought "i wonder why my nipples are flat" and then looked back and they were pointy? And then later I look again and they are flat? I googled it and it didn't give me the results I needed. Should I see a doctor? Or is this something that happens like goosebumps or an erection?