My PSA bounced around under 4 for 10 years. Then jumped to 5.8

Went on Finasteride and it dropped to 3.9, repeated 6 months later it was 4.0. After and MRI and biopsy, diagnosis confirmed, Gleason 3+3. Urologist advised active monitoring with blood tests every 6 months. That's where I am now. EVery time I get a pain somewhere, I think the cancer has spread. I don't like having untreated cancer, but the treatments are not pleasant either, so Im happy to keep my active lifestyle as long as possible. Comments welcome.