I recommend you to check your blood sugar levels again after 1 hour of last check during fasting .Our glucose levels are raised when glucose reach into the blood after absorption by glucose transporters .Now there can be possibility that your body works well for glucose regulation. This means your body is adapting to the rise in blood sugar very well! And this is a good thing. You have a very healthy body. However, if you continue to eat processed foods high in starch and sugars, over time your body will slowly lose this ability to adapt. This is not a good practice.  There can be other possibility that  your bile acid down regulation has occurred due to gall stones,and  absorption takes much more time to get an optimum sugar level .So if this is the case then