Nipple piercings? To get or not to get

Lydia
So I really want my nipples pierced and I've been researching and contemplating for over a year and really the only things holding me back are:
1. PAIN! Now I think I have a pretty high pain tolerance. The only thing that's been able to debilitate me so far is period cramps because as we all know they are sent from hell. I've got my belly button pierced, total breeze, 2 tattoos, kinda horrible but I survived, and my nose and it felt like a scab being ripped off. And the thing with my nipples is, I like them being bitten and it never hurts unless I'm PMSing and my boobs are sensitive so idk, y'all think it'll hurt much or maybe I'll get super turned on? 😳
2. If I ever have a baby, I'm breastfeeding. Now how will 2 extra holes in my nips affect that?
3. My nipples don't actually poke out unless it's cold or I'm aroused so how will this whole nipple piercing thing work? My nips are super tiny.
4. Lastly, I've read that it'll either make your nipples super sensitive or you won't be able to feel anything anymore, how do I try to achieve the latter?
Any and all comments from people who know what they're talking about are welcome! Thanks