Sex drives can be erratic for both men and women. My husband goes through times when he is really in high gear all the time and then not. As a wife I want to take care of his needs, because I lover him, even if I am not in the mood at the moment.

If you think there is a physical problem, I would think you should see a urologist who can diagnose any potential problems. It may just be the result of changes in your life style.