I am 77 years old, with A-Fib, CAD, Pulmonary Hypertension and sleep apnea.. My normal BP is in the low 90 s to 100 s, over the 50 s. A few minutes ago my BP was 86 over 48. My normal pulse rate is 50 s and 60 s, but, has been in the 30 s and 40 s. What do you think?