I have the same problem!

Every time a doc takes my BP it's sky-high! No matter how many times they try to do it for me. They tried taking it with me lying down. They tried it with me standing up and then sitting down.Then every hour. Every couple of days, etc etc...

So in the end they told me to go and buy a wrist-BP-taking machine to use at home.

I try to check the BP when I am fairly relaxed!

The docs have told me at what level I should worry, if it gets to high.

And not to worry about it going up and down as long as it does not stay permanently high.

Hugs.