Considering what you have shared, I think an appointment with a Nephrologist in December is soon enough. Your eGFRs are fluctuating, not moving in one direction, and they are at the beginning of showing possible Kidney disease. Your Blood Pressures are stable and that is another plus for you.
I am at State 4 Kidney Disease, so I feel confident telling you that it is a slow moving disease and continued testing will indicate when/if you need to treat and or make any lifestyle changes.