I had to "deaden my body members" for over 6 years.. not that I was always successful (the big M", you know!) But I do know what you're talking about, Maxee. My cousin, who's never been a JW and has been divorced since 1987, has never dated, and has absolutely NO interest in sex, or very little, although she enjoys the companionship and cuddling of having a relationship. It's a big reason why she's divorced!
It may be that you just have a lower sexual drive than some people. It does NOT mean that you're abnormal, however. We're not all alike in our needs, and there is no need to be!
Hugs,
RCat