Hi Paul,Thanks for writing in.I am qualified and certified cardiologist and I read your question with diligence.Human Heart beats for about 96,000 a day (72 x 60 x24 ), its rate varies as per circadian rhythm and body's activity. Heart rate
stays between 60 to 90 beats per minute. Blood pressure stays close to 120/80 never above 140 mm Hg Systolic and 90 mm Hg of Diastolic. According to your recording your recordings. Your blood pressure had remained mostly high; you can get any machine standardize it against doctor's BP apparatus that is good enough. But what is definite is you need treatment for blood pressure. Personally I found CE certified BP Apparatus of German Make as the most reliable.
With Best WishesDr
M.B.;B.S, M.D. (Internal Medicine) D.M.(Cardiology)