Weird nipples?

This is really tmi but I’m so confused. Ever since I was experimenting with myself from a younger age maybe 12/13? My nipples have always been so sensitive that if I brush up against my shirt wrong I feel nauseous. Even when I’m really turned on I can’t touch them or I feel as if I’m going to puke. I’ve had to stop things before because of how sick I felt. Are they just overly sensitive? Or what I get no pleasure out of them just feel I’ll.