highs and lows

Hypoglycemia and hyperglycemia occur when the body is unable to strike that delicate balance of blood glucose with food and activities

Even with the additional support of insulin injections it is easy to lose this balance. Hypoglycaemia is when blood glucose drops too low. Hyperglycaemia is when blood glucose rises too high.


A hypo can be a scary thing for you to go through, but they can be managed effectively. There might be times when you have too much insulin in in your blood stream. This may be because you accidentally injected more than you needed, because you’ve been very active, because you haven’t eaten or you’ve had less carbohydrate than you thought. No matter the cause, when your blood glucose level drops below 3,8mmol/L, this is called hypoglycaemia, or a ‘hypo’ for short.

What should I do during a hypo?

Having a hypo can be a frightening experience. Symptoms are different for everyone (and you may not get any at all), but they may include:
• Shaking
• Sweating
• Dizziness
• Hunger
• Blurred vision
• Difficulty concentrating
• Feeling anxious
• Changes in behaviour

If you feel like this, you should check your blood glucose level. If it is low you will need to eat or drink something that contains carbohydrate to bring your blood glucose back up into the normal level


Like hypoglycaemia, ‘hypers’ are a fact of life for people with type 1 – it’s pretty difficult to keep your blood glucose within range all the time.
A hyper doesn’t carry the same immediate risk as a hypo as it won’t make you immediately feel really unwell or to lose consciousness, but frequent high blood glucose will increase the risks of developing complications of type 1 diabetes, so it’s important to minimise this as much as possible.
It can also make you feel pretty unwell if you are hyper for too long.
High blood glucose can be reduced by regularly testing your blood glucose and matching insulin to food intake, exercise and all the other factors, as closely as possible.

symptoms of hyperglycaemia

Typical symptoms may include:
• Increased thirst and/or hunger
• Frequent urination
• Headache
• Blurred vision
• Fatigue
• Anger/Frustration/Tantrums for no reason