Welcome @rad62, I know it has to cause some concern to see the PSA number rising. Hopefully other members with experience can share their thoughts. I did find this information on the topic you might find helpful.

"Does rising PSA mean cancer is growing?
Understandably, many men being treated for prostate cancer are very concerned about even very small changes in their PSA levels. The PSA level is an important tool to monitor the cancer, but not every rise in PSA means that the cancer is growing and requires treatment right away."
-- Following PSA Levels During and After Prostate Cancer Treatment:
https://www.cancer.org/cancer/prostate-cancer/treating/psa-levels-after-treatment.html
Can you discuss the PSA levels and possibilities with your urologist tomorrow?