I don't really have any way of tracking my blood pressure. Is it worth starting if I feel reasonably healthy anyway?
Yep, always good to keep an eye on it - they dont call it the 'silent killer' for nothing. Very few if any truly defined symptoms involved.
It is not wise to obsess, or over-monitor BP though, as you can end up getting false readings due to being stressed about your readings!!
Best thing to do is book in with your doctor every 6 months for a 'wellness' check up - blood pressure, blood sugar, pee test and maybe prostate depending on your age. Bit like a regular service for your car, it just means you can have a bit of peace of mind.