ahhh, yes.... "nipples" .... I never really talked about the much, or even thought about them much before I started transitioning BUT now they are an important part of what I was becoming and now have become.
When I first started HRT I was shocked at the sensitivity, the fullness, and the constant feelings and appearance of my nipples being erect and poking noticeably under my shirts.... or rubbing under the sheet covers while in bed.
I have always been very active, involved in marathons, running, jogging, hiking, etc.... Even before my breasts started growing I soon found (painfully) found that when doing those activities that just my nipples rubbing on my shirts, raised havoc and sometimes resulted in irritated nipples to the point that I had to put bandaids over them to protect them but being rubbed raw....
... then I moved on to a tight, low profile sports bra which better protected them.
Now, of course, for me, HRT has done it's job, I wear bras full time, and yes if I carry a big box, or am not careful and bump them ... my nipples and my breasts can hurt. Now, I would never consider doing any of my old active life style activities without a sports bra to keeps things from bouncing painfully around.... and just every day dress requires a proper fitting regular bra... it is a new world having larger and more sensitive nipples and breasts that I am always conscious of and are a part of my body and being a woman.
Hugs,
Danielle