How common is dizziness in hypoglycaemia?

The brain depends on glucose for energy. When blood sugar falls, you may feel lightheaded, shaky, sweaty, hungry, weak, irritable, anxious, or unable to concentrate. Some people become confused or unusually drowsy. Symptoms can develop quickly, particularly in people using insulin or certain diabetes medicines.

Dizziness can have other causes, so the sensation alone cannot confirm hypoglycaemia. If you have diabetes, follow your personal low-blood-sugar plan and use your glucose meter or sensor when available. Repeated episodes need a review of medicines, meals, activity, and alcohol intake.

Stop driving or operating equipment and sit somewhere safe. If you are awake and can swallow, take a fast-acting source of sugar according to your diabetes plan, then recheck your glucose as advised. Once recovered, eat a meal or snack if your next meal is not soon.

Do not give food or drink to someone who is confused, having a seizure, unconscious, or unable to swallow. Place them on their side if possible and call emergency services. A prescribed rescue treatment may be used by a trained person.

Get emergency help for loss of consciousness, a seizure, severe confusion, inability to swallow, or symptoms that do not improve promptly after your agreed treatment. Do not drive yourself for urgent care.

Contact your diabetes team or clinician after repeated episodes, episodes during sleep, or a low reading without clear symptoms. Treatment may need adjustment to reduce recurrence and protect your safety.

Which symptoms should prompt me to check my glucose? What treatment should I carry, and should family or colleagues learn how to help? Could my medicines, meals, exercise, alcohol, or kidney function be contributing?