You are right, I am not anything associated with medical, but I can say, It looks like at the time of the test that you had hypoglycemia or as you know low blood sugar. He will probably have you take it again...have you been feeling dizzy? I am not totally sure about hypoglycemia except it isn't exactly the opposite of Diabetes.
As far as your kidney...I do know that kidney disease doesn't hurt...you could have an infection, though...that hurts and burns. I know that for sure.
The WBC and RBC looks maybe high normal...sorry I probably just said what you already know..
I have promises to keep and miles to go before I sleep, and miles to go before I sleep.......Robert Frost