Ginger, thank you for your response. I actually did read a review of those studies, but the one you sent had more complete information. I have considered from that article, I may have some kidney damage from a marathon I trained for in 2012. There was an episode where my ankles were swollen, although after it went away pretty quickly, I wrote it off. I no longer run distances like that. I told myself about two years ago I’m going to keep it to no more than a 10K. So my running is about 3-5 miles each time, 3-5 days a week for enjoyment and good health. I also added yoga once a week. I don’t like strength training very much:( Right now with winter it’s about 3 days a week, as weather permits, I’ll increase it to 4-5 days a week. So I agree that could be a cause. Maybe I’ve had this mild kidney damage since 2012 and it’s very stable now. Given I have no other risk factors. My neph, basically says that it’s mild and stable. The number of miles I run right now does not seem to correlate to the lab results. I also tried a different lab one time, from the advice of a Urologist friend, who didn’t tell me what you did, but clearly he understands different labs sometimes produce different results. All my numbers were slightly better from that lab, but still high creatinine.

I appreciate your comments a lot. And thanks for the better article. Maybe the running is the cause. 16-20 mile training runs, over and over again is brutal. Not sure I will ever know for sure. Wish I had past lab results to compare, but I haven’t been to an MD since just before 2012 and I recently found out all those decade old records are purged. That’s unfortunate.