yeah during puberty it happened to me, they get puffy and super sensitive for awhile but only for 3 or 4 months, then they go back to normal but still a little sensitive

It kind of depends on how old you are. It usually happens at the early stages of puberty and then kind of goes away. So if you are like me you are probably at the early stages of puberty and the puffy nipples will probably start going awayIt may be six months