I had blood check up for hypoglycemia. I am not short of sugar. My blood test indicate sugar level is normal. I am not diabetic either. When I get drowsy after a meal, manager assume that I am lazy. I don't see anyone else feeling drowsy after eating lunch. I always eat small lunch but it feels like a big meal according to my stomach response. This is really weird. I never heard anyone mention hyperglycemia. I know the definition.