It's BCR, in my opinion. I've been oscillating (monthly tests) between 0.08 & 0.11 for a year, but my last two are 0.12 & 0.14. It's definitely climbing, & I will have a PET scan WHEN (not IF, as I had hoped) it reaches 0.20 (my oncologist's limit).

At that point I can choose (depending on location): radiation, surgery, or go back on ADT/ARPI (which I tolerated well).

That's life in our new world.