I just went to th er yesterday and right before i had my blood test i had a donut, i ate the donut at around 6:45 pm and the test was at 7. Doctor said it was fine to eat. I had two slices of pizza at 2:30 pm. My glucose level wasa 4.9 which he said was normal. But shouldnt it have been much higher since i ate donut? Im worried i am hypoglycemic