Well, that's not a great sign. Mine is usually down when fasting. The only time it wasn't was when I'd cheated before the blood work and ate a half of peanut butter sandwich (not smart on my part). I would say that you need to speak to your doctor about this. Are you diagnosed type 2 diabetes and this is why you are checking? Are you on treatment for it? Or was this prior to a test?
How high is high? Are you already diagnosed with diabetes?
Tell us some more about yourself.
If you are diagnosed with diabetes then approach will be lower carb diet, exercise, weight management, and medications (as necessary) to bring your sugar levels down to normal range.
Are you on meds that drive blood sugar up - such as statins for high cholesterol or some high blood pressure meds?
I have high blood sugars in the morning and was told this was a condition called Predawn Syndrome. Has anyone else heard of this or have it. Ask your doctor if this could be what you have too.