Yes …you believe it that you just read. The problem is not that the blood sugar is high; the problem is that the cells are starving. They are not getting the nutrition which insulin is supposed to deliver to them. It is insulin’s responsibility to ensure that all the nutrients you consume get delivered to the cells which need them. And its your responsibility to ensure that insulin and glucagons (secreted by the pancreas) do there job well. Glucagons are secreted when there is fall in blood sugars and insulin is secreted when there is rise in blood sugar (ideally). So correction in nutrition and food habits o will help you to get out of this ill at ease .