Thank you all for chiming in. Very helpful! There's a lot of areas I don't know about (yet). So far my main source of information is this 'https://www.cancer.gov/types/prostate/psa-fact-sheet".
To answer Chris' question re my reluctance to take Tamsulosin (or any medication) - it's mostly because of my skepticism regarding 'standard' medical treatments and prescriptions. So far I always did better without them.
i.e. I was 5 years ago and out of the blue diagnosed with Diabetes 2. I got all kinds of medicine described, after lots of research I stopped all that and started a rather rigid low/no carb diet (now often called Keto). My doctors called me crazy and painted doom in colorful pictures. Alas this diet was and still is extremely successful. The same doctors now called me 'healed' - which of course I am not, I just keep it in check. Should I start eating again the usual carb rich diet, pizza, spaghetti, potatoes and some cake I'd be right back to very high glucose numbers.
I'm of course also on the look-out finding 'natural' remedies or whatever regarding my prostate problems - so far haven't found any. I'm not anti so-called school medicine, but my acceptance standard is a bit high for better or worse.
The document I quoted above almost suggests one might do better without doing PSA etc tests. I didn't ask for it but they'd it and here I am, I'll have to deal with it either way. Not to mention my family got overly scared and pushes me to do this and this and that ;-)
Anyway, I appreciate all your replies - keep it coming, please.