I've been asked to take x2 daily blood pressure readings for a week.
My BP is usually between 110-120 (systolic) and 65-85 (diastolic).
Last night my blood pressure was 91/60, the systolic a bit lower than normal, but acceptable.
I forgot to take mine this morning, so have just done it. As I'd been moving about a lot and not 'sitting quietly for 5 minutes' I expected it to be fairly high, it was actually 89/42.
The machine is fine as DH's is still the upper limits of normal, but mine is pretty low, particularly the diastolic, which used to be much higher (until I measured this week it's been around 85 usually).
I do feel faint a lot, but I assumed it was high BP that was causing that, as my BP has been rising over the years, so no idea why it's dipped.