Who else can feels the highs?

Close to two months ago when I was diagnosed, I was walking around at 477 (yesterday, 477) when I headed into the ER. They were shocked that I didn't feel any symptoms.

Fast forward to today and if I spike to 140/150, I feel kind of floaty with blurry vision. I want to takw a nap. It doesn't happen every time, but it's happened often enough to make me want to ask others.

Are you also more sensitive to the highs (or even lows) now?