Steve, like Lyn I am surprised your PSA has been allowed to reach this level before suggesting SRT/HT.
Your recurrence does appear to fit a pattern of local cells in the prostate bed but i personally would ask for a bone scan and an enhanced MRI to check things out.
A PET scan would be appropriate too but would unlikely be funded.
I have been through prostatectomy, SRT and am finishing 27 months of HT.
The side effects are significant for me and for many others I’m sure and my recurrence fits a different pattern. But despite that i went ahead with a final curative attempt as that was my choice(and my wife)
Your PSA is increasing so you can either choose not to do anything about that with QOL a priority over time or you tackle it with SRT, HT, or both to possibly extend life.
At 61 and with a rising PSA i would think very carefully about what you do.
If you do decide to have treatment the quicker you get started on HT the better.
Not an easy choice, none of this is.