I mentioned this in another post to someone and thought I'd make my own thread about it so I can find out if anyone else has this problem: "I have Orthostatic HYPER (not hypo!) tension. My blood pressure is between low to normal when I am sitting and within seconds of standing and trying to walk, my blood pressure goes way too high. This last December I had a stress test and *two* minutes into my test, my blood pressure went from 130/80 to 220/120 (approx.) and my heart rate went up to 160. I wasn't even walking very fast yet! We had to stop the test about 3 minutes into the test as I was having problems. So then I had to have a chemical stress test." It's like the blood rushes to my head too fast and then it feels like something is squeezing my neck and preventing the blood from going into my head right. Sometimes I hear loud swooshing, and sometimes I hear my heart beating loudly in my ears. (I also get the swooshing sounds and heartbeat sounds when I go to roll over from my back to my stomach when I'm laying in bed.) When I stand to walk I get dizzy and I can feel my blood pressure rising fast and sometimes my heart beats fast and skips. I've had this problem for many years but it has gotten way out of control now. I'm now on 25 mg once a day of Atenolol and it's still not helping like it should (the higher doses made my blood pressure too dangerously low.) Other beta blockers work better but they make my daily diarrhea worse (severe IBS) and I'm trying to get pregnant (at 45 years of age) so we don't want me on anything stronger than what I'm taking. By the way, I don't know if this has anything to do with the blood pressure problem, but I have Meniere's Disease and have terrible tinnitis and am losing my hearing. I read on the internet that orthostatic hypertension is rare. Anyone else have this??