Hi James. When I have PC questions I often defer to my A.I. friend. When I placed your information about a prostatectomy 6 years ago, pelvic radiation 2.5 year ago and PSA values in the 0.03 to 0.06 range my A.I. friend provided a "generally reassuring" response in the following two paragraph excerpt:

PSA values in the 0.03–0.06 ng/mL range two years after prostate bed radiation are very low and remain well below standard biochemical recurrence thresholds used after prostatectomy and salvage radiotherapy, so they are generally reassuring if stable over time. That said, the ideal postoperative target is undetectable PSA on an ultrasensitive assay, and the pattern over serial tests (flat vs. steadily rising) is more informative than any single number in this low range.

A stable PSA hovering between 0.03 and 0.06 ng/mL over multiple draws is commonly considered low and compatible with good biochemical control, given that it remains far below the 0.2 ng/mL definition of recurrence used post‑prostatectomy and after salvage radiation.

Your walking habits also sound great and admirable. I think you're on an effective path.