Please help me understand my body:(

For some reason I have never been attracted to "sex" after I turn 17 I felt like all my friends were having it so then I started trying to do it more and it was never satisfying and no I have never orgasm before, Iam now 20 years old and have had about five partners from 17 till now and it's honestly brought nothing but bacterial vaginosis. I don't know what's wrong with me I just can't fully enjoy it for some reason and I always feel uncomfortable :-/ am I the only one who go through this?