Take this up with your gp, it could be a number of conditions and may be unrelated to your diabetes so its always best to get these things investigated at a early stage.
I agree to run it by your GP. I had pins and needles in my left hand, I mentioned it to my doctor and after some tests at the hospital, I had a trapped nerve in my elbow. Had it operated on about 2months ago and it is really improved. All the best. Emerald