Thank you for your response!!!! It is encouraging to know that "eventually" there is a possibility of a more likely path for me to regaining sexual satisfaction, meaning for instance, as you say, "a periodic regimen of inserted (inserted in the hip) bio-identical hormone pellets that time-release over a six month period" could be helpful. Seems to me that if at the age of mid-70's, there is ED and loss of libido at a steady rate of decline, and a person has had doctors rule out the likely culprits such as blood flow restrictions, psychological reasons, etc., then science should be able to restore the hormone levels of when we were in our 30's or 40's. I just need a local doctor to champion the cause.
My strategy is to keep pursuing an endocrinologist who will take an interest in my case. I think I have found one. But first I need to have a test for a plethora of hormone levels. I may splurge and buy the $35 book by Dr. Aaron Spitz, "The Penis Book". I haven't ruled out trying hypnosis further down the road. When you said HRT with respect to dire side effects, did you mean something related to cancer? Would you know the drug name for the bio-identical hormone pellet implants you received?