I am not a doctor but my creatinine clearance has stayed at around 21 - 25 for the past 2-1/2 years (thankfully). I don't think there's any way to tell how long it could be, although I could be wrong. From what you say, I think it is terribly important to get your BP under control. What medication are you taking (just curious)? I was on Vasotec for years and it did a great job but now I'm on Atacand, only 8 mg. daily. It really controls my BP--I'm even low a lot of the time. I have some fatigue (my husband says now I'm "down" where the normal people are as far as energy goes!

) and the leg cramps at night, also a lot of general aching all over. Otherwise, I'm feeling good. Do you see a nephrologist on a regular basis?