Thanks to each of you for your replies. They all make sense and I can see now that I have been placing too much store on the PSA result.
I have no idea what my T level might be, but I will try to find out. What you say makes perfect sense Lyn, thank you!
I think I had decided in my own mind that my symptoms were a reaction to the Degarilix, but the oncologist felt that it might be the tumours fighting back. Hence he has arranged the scans. So we will see what the results are from those.
Ironically, I have been feeling much better today, though I am still not out of the woods. But I am hopeful that these flu like symptoms are easing off a little.
Dave and AC, it looks like you have both really been through the mill lately and Lyn, you have been through it all 3 times! I think you are all to be congratulated on your tenacity and long may it continue.
Good luck
Peter