Thanks for the sensitive and informative replies.
It is wonderful to finally know the truth and to get relief from the struggle to be something more than I am.
My therapist made an important point. She said that I don't have to please all of the women in the world, only the one I am with. (and that takes the pressure off of trying to be some kind of sexual superhero)!!!
I guess I was trying to make up for the mistaken belief that I was "not enough" to 'love', be faithful to, or to pleasure a woman. That "lie" has caused me to live in pain and fear for many years and I want to thank each of you for your honesty and candor.
Perhaps now I can get on with the business of having a healthy and loving sex life.