@junagode We can expect our kidney function to drop a bit as we age, according to medical sources. Reading your post earlier to @lbrockme you have been taking command of your situation. Remember, it is best to look at trends, not a single report. Dehydration, and even what we had in our diet the few days before a blood draw, or infection of any kind [cold/flu/toothache etc.], may play a role in eGFR results.

Yes, most of our fellow CKD patients will attest that their GP doesn't seem as concerned as we are when it comes to kidney function. Self-refer if you need to, to get a nephrologist!
Ginger