@gingerw The eGFR numbers were all >60 until my testosterone was sent to the south pole (i.e. very low - Androgen Deprivation Therapy). Since then, they have all been < 60.

The only exceptions were during three times that I had SIRS/Sepsis episodes, and things are too messed up at that point to provide useful readings.

PCP hasn't said anything more - at the moment, there are some more important mysteries not related to this.

My suspicion is that this doesn't represent true kidney damage, but rather change in effectiveness due to my hormones being far from normal.