For the past ten days I have been noticing that I wake to the sound of my heart pounding in my ears, and when I take my blood pressure it is way up. This usually lasts for hours until it slowly starts to go down. I am at a loss to understand what could be making my blood pressure go so high in the morning! It has me scared, actually. Once I responded by drinking a large glass of water and it dropped by about ten. But that doesn't always work. Has anyone else experienced this?