I Have The Symptoms Of Diabetes But Nothing Ever Shows

I have the symptoms of diabetes but nothing ever shows up when I do a fasting blood test. It has gotten so bad that I don't drive in the mornings and have an increasing amount of weakness/fatigue in the morning whether I eat or not. I have taken Lipitor for years so my cholesterol is fine. The only thing that shows up in a blood test is a Vit. D deficiency and I am working on that. I just turned 70 and I have all the other symptoms of diabetes listed on this website.