Oh, okay i get it.

So when he said your kidneys are fine at your last visit, what he really meant was, but we will keep an eye on them. Which is the right thing to do, based on your meds, which do affect your kidneys.

I wouldnt worry about an occasional high reading, but i would start recording, at least once a week, when you wake up, before you start moving around too much, stay still calm down take a reading and write it down. Then he will be able to see if it is gradually moving up or what, and adjust meds and diet accordingly.