Is this normal?!?

So before I met my boyfriend I was a virgin.. I've masturbated and tried different things with myself and I really don't get any sort of sensation down there or any stimulation externally or internally. Now that we've been having sex nothing much has changed with me. I really don't experience any "sex drive/ desire" or orgasm or wetness or any sort of thing that I hear other women talk about having during sex. dont really get horny though sometimes I'll want to have have sex and the thing is that I don't have the urge to act upon it. I do feel him inside me but I don't feel anything and it's not painful or pleasant either way. He's asked me if this is normal for me which for me it is but it makes him feel bad that I can't experience an orgasm or let alone sensation. we've tried different position and even clitoral stimulation doesn't help my predicament. We have agreed that it most likely is something medical and would have to see the doctor for possible treatment.

Any thoughts/advice/comments?? I've never heard of anyone experiencing the same exact thing so I'm thoroughly confused..