Off topic from cancer for a moment but regarding your bacterial issues: I knew a man who got a mild case of food poisoning from a good restaurant; typical vomiting, diarrhea, etc. until it ran its course. A few months later he developed severe gastric pain. Battery of tests revealed a stomach ulcer caused by H. Pylori bacteria; this is THE most common reason for ulcers - not stress, spicy foods, etc.
Anyway he did the antibiotic protocol and in one month he was fine. Fast forward 6 months, he’s got terrible groin and testicle pain. They aspirated some fluid and it turns out the H. Pylori had migrated to hid scrotum. They blasted him with some drug combo and he recovered completely. I assume he’s fine (lost contact with him) now, I hope!
My point is that some bacterial infections (Lyme Disease, etc) are extremely difficult to eradicate; they can stay latent for years or crop up regularly like clockwork. Unfortunately they can also become antibiotic resistant.
If you had 34 yrs in the military, God only knows what you might have been exposed to; attempting to culture this infectious agent would be better than throwing antibiotics at it willy nilly. Cipro is powerful, but it too can be useless if resistance has occurred.
Right now your main concern is cancer but perhaps a consult with an infectious disease specialist might be better than anything a urologist can do for you. Best
Phil