Thank you for your reply. I do currently take lisinopril 10mg. twice/day and clonidine .4mg (total) twice/day, but they do not properly control my essential hypertension. The only medication that works (half-way) is Bystolic 20 mg, 1 pill every few days which lowers my heart rate, but has no effect at *all* (I've tried more, but my heart rate got too low) on my blood pressure. Essential hypertension (if that's what it is) is so very hard to control. For all I know, I could have arteriosclerosis and it would not show up on a stress-echo ... WAG ... from the iNet research I've done. I would need to have an angiogram. BP just measured is 170/90 with a heart rate of 60 bpm. That's a heart attack or stroke getting ready, IMHO. I am now taking meds. MDs try to *hide* the fact that they don't know what causes essential hypertension. Mixing opiates (vicoprofin) with the clonidine helps a bit -- but why should I have to do that?? I agree with you that the nurse is not the right person to communicate my concerns with. Sometimes even *oversleeping* will increase my BP. I think I see my death coming, but at least I'd like to know what is causing the HBP.