Thanks all for your comments.
A couple of observations.
When I sat outside waiting on each radiotherapy session I found I was obviously the youngest there. I had to change to wait in the main foyer however after a time, as the conversations were all around symptoms that each individual felt were common to all, as were their methods of treatment/coping with it. I found this attitude quite blinkered but understandable for people who were focussing on their own misfortunes. However, the discussions on how insomnia or gynaecomastia was going for them or what size incontinence pants were best became unbearable. With this in mind I have no desire to go and sit with others in the same situation and share blinkered points of view and obsess on symptoms, side effects and treatments. If I have any questions, I am happy to seek medical advice from those actually qualified to answer them. Which at the moment, I don't.
As for describing myself as 60% of a human this is obviously a psychological interpretation but is based on the physical failings, some of which I have described above. Some others are too disgusting for me to share thank you all the same. Whilst it may be true that some men cope better with side effects than others, in my case the side effects have had a large physical and practical impact on my life, and as some of them are quite degrading, I have enough self respect to make me be ashamed of my failures.
As I said earlier, I am getting 3 monthly bloods taken to measure psa and have made arrangements to have any concerns from the oncologists to be related to my wife. I can quite see that someone may consider me putting my life at risk, however, despite euthanasia being illegal, I believe that is still my prerogative in the UK.
It's just my way of coping. It may not be yours.