nxtjen....I would like to add one more thought....it isn't always just about "normal" testosterone levels. I have seen libido issues with those who have normal levels. Keeping in mind that there is a lot of leeway in what is considered normal.
Testosterone is important...of course....but it is only one factor involved.
A general medical doctor is not usually prepared--in terms of time or the special training to deal with libido issues...axcept to do a general testosterone level and refer to the proper individual (usually a urologist, first).
dandylion