I am 70 years old, female & Caucasian. I had labs done in May 2016 ( eGFR. 58). Labs again Nov 2016 (eGFR. 48). Labs again April 2017 (eGFR. 42). I'm taking Simvastatin, Meloxicam & Lisinopril. I try to eat healthy-no caffeine & have eliminated any forms of asprin. I excercise daily & drink water constantly. Am retaking labs in October so hope to get a better reading of eGFR then; but should I be concerned?