How Do I Know If I'M On Too Much Blood Glucose-Lowering Medication? Home » Questions » Diabetes » How Do I Know If I'M On Too Much Blood Glucose-Lowering Medication? 0 Vote Up Vote Down Anonymous asked 8 years ago Several times a day I get very shaky and light-headed. I usually grab a glass of orange juice and some peanut butter crackers. This helps, but what else can I do?