HH Symptoms for most of adult life

Hi - I am a 57 year old male who has all the symptoms of HH including failure to progress through puberty normally without intervention. When I was about 11years old in New Zealand I had radium treatment for scar tissue growth following an accident where by they wrapped my arm in a lead casting and only exposed the scar to "kill the cells" in the scar tissue to reduce growth. I believe this may have been the start of my HH problems. During my married years we had to adopt children as I had a low sperm count. I always had trouble maintaining an erection and I enquired about it several times over the years to different health professionals who all put it down to anixety and stress. I have now just entered a new relationship with a woman and find that my libido and ED has become a major problem. I get a temporary "fix" through the use of viagra and have been diagnosed as having early stages of type 2 diabetes. I believe that I may be helped with HRT treatment so I can lead some "normal" sort of life again. What are your thought on this matter?
Tim