white coat cure
I can tell you what works for me. Mine is high in the Dr's office as well. I usually try to work out or run (running is better) for approximately 30 minutes to an hour, an hour before the exam. There is a thing called post-exercise hypotension, that is caused by the release of serotonin and something else which is caused by the exercise. There have been studies that show one hour of exercise in the morning has the same effect as taking blood pressure medicine and the effect will last most of the day. You can look it up on the internet searching for post-exercise-hypotension. I would try this method and see if it works for you before actually going to the AME.