That has not been my experience. My morning blood glucose levels had been in the 180 range and in the evening, around 140. I lost 30 lb., and as I shed the weight, my blood glucose levels dropped almost proportionately. I now test around 115 in the morning and 100 in the evening.
That was a generalized statement. There are a variety of confounding factors which can obscure what is going on. For example, was this while you were on or off of the diabetic medication/s?