I was diagnosed with type 2 diabetes a year and a half ago. I had a blood clot in my leg that the doctor called an "unprovoked event" so they started looking for possible causes and found diabetes(also a heredity blood clotting factor). I already have diabetic retinopathy and nerve damage in my feet.. How long does it take for this kind of damage to develop? In other words, how long have I been diabetic? Ballpark. I don't guess there's any way to determine this exactly. Testing has shown that my heart, liver, and kidneys are undamaged. Thanks for any enlightenment.