Does magnesium deficiency or inadequate mag in cells means that my kidneys aren't working in a proper way?

Visit this site for information. https://health.clevelandclinic.org/feeling-fatigued-could-it-be-magnesium-deficiency-and-if-so-what-to-do-about-it/ Your obsession notwithstanding, none of your communications provided any evidence that you have magnesium deficiency What makes you think that your kidney is not working in a "proper way"? Eat a balanced diet: : http://www.choosemyplate.gov/

You have wrong information. Nobody can make the diagnosis of low magnesium in the cells (intracellular magnesium deficiency). Yes, there are cases of low magnesium in blood (hypomagnesemia) due to renal mishandling of magnesium and serum magnesium level has to be low by common blood test, not magnesium deficiency in the cells.