Not sure if it is helpful but I was diagnosed with stage 4 prostate cancer Aug 2016 with a PSA Reading of 5000+ subsequent scans showed that the cancer had spread to ribs, lungs, shoulders, and a lot of places in between. Had Chemo and then on 3monthly Prostap injections.
I am OK. Can do 5 to 8 km walking max. Frustrating as I was a Party Leader in Mountain Rescue and easily did 30km with heavy loads up until a few months before I was diagnosed.
My GP is somewhat amazed, I guess I am a bit of an outlier as far as the survival stats go. Always been fit and never over weight so I guess that helped.
Now 6+ years since diagnosed after being rushed into hospital with really bad pain in spine and shoulder. Vertebrae are a bit beaten up by the cancer but OK otherwise. Deep hot bath is magic, oromorph if that doesn't work.
Fed up with hot flushes. Have to wear cardigans or jackets and not pullovers. Luckily not getting boobs but male pattern baldness in advance stage is showing signs of defeat.
No one would tell me at the start how long I had. But consultant winched when I asked if worth getting a 5 Yr diary! So spent first year getting all my things sorted. Put together handbooks for everything in our lives as in house, pension, finances, etc for my wife. The resultant organisation impressed the hell out of me and managed to keep it going. Moved to a flat next to the sea. Any closer and it would be called a boat (10m from high tide line and 20m above)
No idea how long I have. PSA Tests every 4 months now and still undetectable.
Anyhow I thought it worth mentioning that even if you have a psa >5000 and your consultant has gone pale and polite it might not be all that bad
Ian