Hi BobS007,
I just replied to you on another thread. Yes, I had extreme tiredness and as I had non nerve sparing I will never have a natural erection again - it has been over two years since the op and not so much as a hint of any hardness.
As I said on the other thread, be kind to yourself and don't try to recover quicker than it takes. I am retired and play bowls twice a week and table tennis on a Thursday. I am a grandparent who is heavily involved in my three year old's life and just about can keep up with her. I still get tired sooner than before, but it has improved dramatically.
I so hope you get there soon.