@larry1943 I hope you are reading our replies to you, and see that you have a cheering section here. The kidneys are a wondrous organ and all the things they do for us, are not always noticed until they are not working well. But they need to be supported to work well: good diet, moderate exercise, care in lifestyle, etc. Lack of fluid retention and ability to urinate is not always a sign of good kidney function. Differences in GFR can be the result of different labs/testing equipment, hydration levels at the time of the labwork, foods eaten in the days before having blood drawn. For myself, I have seen two different GFR levels coming from same sample, as two different machines were used. The overall trend is the key to watch. It sounds your Dr has been working with you, and you also have a part to play. My husband was on peritoneal dialysis for 5.5 years before his transplant, and never let it stop him. Usually a Dr starts talking about/considering dialysis about GFR 20. Diabetes and high blood pressure are the leading causes of kidney issues. Is you endocrinologist working with your kidney Dr to manage your case? How are you feeling about what we have commented to you? A good source for information is http://www.rsnhope.org, founded by a lady who started her kidney disease journey at the age of 3.
Ginger