Like "I panic, too, when my GRF consistently runs lower than 59, and the Nephrology web pages say that I am in stage 3 of kidney disease. "What shall I do?" I asked my docs. Always the answer is the same: keep the A1c "under control" (mine is 5.5), and and the blood pressure within normal limits (mine is 110/65). So I enjoy life. I have had several tests regarding kidney function that proved that so far there is nothing to fret about. I've been Type 2 for over 10 years, and take only metformin."