@itchyd a lot of us in the Kidney & Bladder group would be envious of your eGFR. It is not surprising that your endocrinologist and rheumatologist didn’t see the need to mention it. Many “normal” people have an eGFR in the 60’s. You mention having “symptoms related to deteriorating kidney function”. That is true, but can also be attributed to your endocrinology & perhaps rheumatology problems. Kidney problems often don’t cause any symptoms until the function is much worse (eGFR in the 20’s or 30’s). If you continue to be bothered by this and are willing to add another specialist to your team, a visit to a nephrologist could shed some light on your situation.