I am a 72 y.o. white male in generally excellent health. I've had HTN for years, always well-controlled with meds. Two weeks ago my BP spiked, literally overnight, from ~118/74 to 210/116 (yes, I know that;'s dangerous!) At the time I was on Benicar 40 mg. I added amlodipine 10 mg (my doc trusts me to self-titrate) and that helped somewhat--down to ~160/92. Then she added spironolactone 25 mg (that's a diuretic). It's come down to 118/72--and I expect it will continue to drop, and I will taper off on the meds.
But I'm wondering if anyone else has had a BP spike. I cannot explain this spike in any of the conventional ways--forgotten meds, use of salt, stress, kidney or thyroid problems, etc. I do have a suspicion, but I don't want to prejudice any answers here by revealing it yet.