A DROP IN BLOOD GLUCOSE LEVELS CAN BE CAUSED BY:
Type and amount of food
Delaying or skipping a meal, or having a meal with less carbohydrate than you normally eat.
More activity than usual
If you increase your level of activity, your blood glucose levels can drop. Whenever you start a new activity, monitor more frequently to watch for glucose changes.
More medication than usual
When you have more diabetes medication than normal (an extra dose for example) blood glucose levels can drop.
Signs of low blood glucose (hypoglycemia) include:
Shaking, confusion, extreme hunger, sweating, fatigue, mood swings, a rapid heartbeat or even passing out. If you feel signs that your blood glucose is low, check it. (Low is defined as less than 4 mmol/L). Low blood glucose can happen quickly, so it’s important to treat it right away. If your blood glucose drops very low, you may need help from another person.