Psa rising after prostatectomy

At age 45 I had a prostatectomy
After five years my psa started to rise
Fist .1 then.2 then .3 then .4 then .45 now .6
This has been my rise over the last 10 years
My doctor is recommending radiation
I already have incontinence issues and erection issues
Have been told they will probably get worse with radiation as well as other health issues with the bladder colon etc.
I would appreciate any thoughts or comments in regards to what I should do next