Hi, I have had GFR rates between 55-68 for over 5 years. With BUN High every other time & creatinine high every other time. My glucose levels have been between 55-186. I have recently developed Optic Nueritis. I have body aches, pains, black outs, memory loss, weight gain, severe fatigue. But I have not been diagnosed with anything. My doctor has not mentioned any of the GFR rates or BUN or creatinine levels. I asked for my records & found the levels. Any suggestions? Thank you