Does anyone else's blood pressure rise when they've overdone? In my case, it's not a quick up and down, like heart rate can be (if we pay attention!) It seems to be that when I feel weaker or more flu-ish than usual my blood pressure is high. I'm not sure that it always does this, but know that it often does. For years I had low blood pressure, which dropped quickly when I stood still. Sometime in my mid-40's it started getting higher, and now I'm on a blood pressure med. I still have symptoms of OI, but not as bad as when younger. Btw, I checked my blood pressure before opening a little can of V-8. Deciding I didn't need that much sodium, I poured a large glass of milk - then realized it has just as much sodium!