You can read my profile, which tells my journey, with prostate cancer.
I was diagnosed at the tender age of only 53. I had an aggressive type. I opted for the robotic surgery, like yourself. After surgery, I was advised by the surgeon that:
"66% of the time(patients in my status) the prostate cancer NEVER returns."
I began experiencing a rising PSA level, about 2 1/2 years later.
Knowing that I had an aggressive cancer, I PUSHED THE ONCOLOGY DOCTOR-- TO COMMENCE RADIATION TREATMENTS. The doctor gave me the option of:
watchful waiting or undergoing the radiation treatments.
The doctor commented that the "outcome" of his patients,
has been more positive for those taking radiation treatments.
*** That being said, every person is different, in my opinion.
I don't know what your Gleason score was? stage of cancer?
There are many variables, that enter in to the response to
your particular situation.
You might consider getting a "second opinion", about your doctor's
apparent recommendation, that you undergo radiation.
** There ARE potential side effects, from radiation treatments.
I experienced some of them, and still have residual effects.
(My radiation treatments were 4 years ago).
My cancer returned, 2 years AFTER the 8 weeks of daily
So, I feel that it is important that you, make an informed decision.
** Only you know, ALL of your personal variables, involving your decision. But if you have any question about the NEED for the radiation treatments, why not get a second opinion.
Let me know, if you have any further questions. Take care.
Hope I helped you.