I would suggest you talk to your doctor about these readings and have him give you the correct medication to control your blood sugar. 170 is very high for a fasting blood sugar.
I'm experiencing the same thing although not as high in the AM. Nonetheless my doctor diagnosed me as pre-diabetic and placed me on medication (Actos) because my HBA1C was way above the normal range. Check out the subject on "Dawns Effect" or "Dawns Phenomenon" on Youtube.