Can't feel nipples?

So I can feel the very tip (my nipple), but not my areolas (the surrounding area). I feel like this has to be abnormal if some women can orgasm because of foreplay with nipples. I'm not talking about just no pleasure, I actually can not feel it if I touch them. (even during sex I feel nothing? But then again I guess that could be related. I don't feel anything when I'm having (vaginal) sex either. It doesn't hurt, it doesn't feel good, it doesn't feel like anything, it's just numb)