Sunlover, I can totally relate.
Went to my primary care doctor because of a sore hip and they routinely take BP and mine was 170/100. That really freaked me out since at home it is 130/75 with the diastolic never ever over 85. But, then again I have white coat syndrome so I wasn't too worried about the high reading in the doctor's office, other than that diastolic was a little higher than my normal doctor office panic, which is usually 140/90. I was prescribed prednisone for sciatic nerve inflammation at a high dose to start, tapering down over a week. Two days later I noticed my face was flushed and took my BP at 8PM at night and it was 190/100 AT HOME. Oh my goodness. I must be having a bad reaction to the prednisone. I took it again over the next few minutes and it kept getting higher until my machine started showing error messages it as so high. Already in panic mode I decided to drive myself to the ER (never a good idea). They were swamped that night. When they took my BP it was 201/103 and they left me in the waiting room with all the coughing and sneezing people. Two hours later they took it again and it was 190/102, two hours after that 175/88 and 156/89 when they finally took me in to see the doctor at 2am. The doctor looked at me and said they only treat patients who come in with pressures over 220/110 and although I was close, they would just send me home with instructions to see my primary care doctor in a couple of days. The doctor denied it could be the prednisone, but suggested I stop it immediately anyway since I had only been on it for two days.
The ER doc did not say it, but I know she was thinking panic attack.
So I went back to my primary care doc a couple of days later, who now has me on a blood pressure medicine, lisinopril. All because of a sore hip. And panic. At home I'm now running about 126/70 with the BP medicine.
I agree with Marc that we "sensitive" types should not have blood pressure cuffs in our homes because we make ourselves crazy. We can drive our BP higher from panic (or at least I can, apparently). 20/20 hindsight tells me I should have taken a Xanax and gone to bed, rather than go to the ER. But they say it is better to be safe than sorry.