My philosophy is that any ailment is not a deficiency of drugs, but rather the body's attempt to let us know something it needs and isn't getting, or is getting and doesn't need. Especially someone like you who has always had such robust health. A good place to start would be to read this article https://www.westonaprice.org/health-topics/modern-diseases/the-emperors-new-clothes-aggressive-new-guidelines-for-prehypertension/

If I was in your position I would also - stop the medication asap and supplement with CoQ10 or a heart glandular instead. Given that back in the day the guidelines for systolic were 100 + your age, the 170 is a bit over but not too worrying. The 105 is a bit high though, and it seems the CoQ10 can help that. The weight could be a factor, but 5kg isn't bad; I think we need a bit more flesh on our bones as we get older, within reason. Let me know what you think after reading the article.

Heading out soon, but have kitchen jobs tomorrow so will look forward to some head banging then. Oh and I meant to reply to your last comment to say - great that retiring to Italy is still on the cards.