Low GFR

I'm a 44 year old woman, 5'6" and a135lbs.  Have always pretty much maintained  a healthy weight.  I just got blood tests back that had my creatinine at 1.08 and GFR at 55.  I've never had my GFR taken that I'm aware of but my last creatinine level that i have record of was .9 back in '96 so I don't know how long this was happening.  I do have hereditary cholesterol that is under control on meds and my blood pressure has always been on the low side.  I do have hypoglycemia which went undiagnosed for my entire childhood and into adulthood.  I've never received any treatment for it. Everyone I've talked to about it never seemed to be too concerned.  could these be the causes?  Can I stop any kidney decline if it's determined that I do have CDK?  Plus, over the last year I've been training with a competition trainer and have gained about 12 lbs of muscle and have been on a higher than normal protein diet though I stopped training about five months ago.  could this have anything to do with it?  Tks for any info.

[MsGracie]

My doctor redrew blood and also tested my urine.  My urine was normal and my second blood tests came back with great results.  I had a creatinine level of .98 and a GFR of 62.  the only thing i could think of that would skew my results was a Kidney infection I had two weeks before my original test that made me pretty sick.  I thought I had the flu I felt so bad.  Maybe my kidneys were still feeling the affects even though I had finished my antibiotic. My doctor had a record of an earlier reading of my GFR at 55 as well so that may have been a sign that something was wrong before I felt it.  I'm very very relieved and grateful.  I feel like God just wanted to get my attention and if that's the case it worked. It opened my eyes as to how much more I need to be aware of what's going on inside my body.  I never had a clue about how my kidneys functioned and what I can do to make sure they stay that way.  I'm going to keep an eye on these things from now on.  And I'll check back in from time to time to keep myself honest.