And, to add to what @Just966 posted; a single data point taken once a month in the Doctors office (situated at top of a hill, and her office is upstairs in an old Victorian) doesn't tell me anything. I've never smoked, alcohol has dropped to (almost) nothing since start of year, since retiring at the end of September I no longer drink coffee, my exercise has increased an order of magnitude, most days 15-17k steps, some days over 25k steps. Besides my better judgement some days I've managed vegan lunches 🙂
I remember my attitude changed when I read "Acceptable Risks" by Jonathan Kwitny (1992?); especially as I had many close friends who were dying, and at the time was an AIDs buddy. Being a second set of ears in meetings with doctors was critical, even more so if we came to the appointment with real questions, real data. I view this as an opportunity to have more data in my once a month 10 minute appointment.
I guess what I'm trying to say is: at this point I'd rather have too much information than a single data point in stressful surroundings.
And, in the past week I've learnt a lot : my pressure is consistently much lower at certain times of the day as well as overnight... watching porn had virtually no impact... and vegan lunches didn't harm me 😁