It's happened to me as well. A few years ago when I was many years out from the DS; they were up. We waited and saw they went back to normal. Not saying yours are just a blip, but mine were.Not obese (almost underweight)
Don't drink alcohol except the occasional social drink (maybe 1 drink twice/month)
Never had diabetes
Don't take any medications except all my vites and Prozac and did not take it during the 24 hours before draw.
Perplexing.