What does hypoglycaemia mean in people with diabetes?

Low blood sugar can happen after diabetes medicine, a delayed or missed meal, more physical activity than expected, or alcohol without enough food. Early warning signs may include shaking, sweating, hunger, dizziness, irritability, headache, blurred vision, or difficulty concentrating. If glucose keeps falling, a person may become confused, have a seizure, or lose consciousness. Some people notice fewer warning signs after repeated episodes, making a monitoring and prevention plan especially useful.

If the person is awake and can swallow, use the fast-acting sugar recommended in their diabetes plan, then recheck glucose as advised. Once symptoms improve, a snack or meal may be needed if the next meal is not soon. Keep a record of the episode, including food, activity, medicine timing, and the reading if available. Never give food or drink to someone who is drowsy, unconscious, or unable to swallow; place them safely on their side and follow their emergency plan.

Call emergency services when the person cannot swallow, is unconscious, has a seizure, remains confused, or does not improve after the agreed rescue treatment. Urgent review is also needed after repeated episodes, nighttime events, or an episode without a clear trigger, because medicines and the wider diabetes plan may need adjustment.

Ask what symptoms to treat, which rescue treatment to carry, how family members should respond, and whether your medicine, meals, exercise, or alcohol plan needs changing. Ask when to check glucose more often.