Hi. Sorry for the delay in replying as I just got back from a trip. I was searching for some information about your question and ran across the following thread that's from a couple of years ago. It seems to have some information about possible dietary and lifestyle changes.
Bottom line, you need to either make a lot of lifestyle changes in a short amount of time and hope they work, or you need to get to dialysis pretty quickly. If you live in an area with a large medical teaching institution, I'd suggest getting yourself to their nephrology department as soon as possible.