Can a diabetic have high and low blood sugar?

When you have diabetes, you may have high blood sugar levels (hyperglycemia) or low blood sugar levels (hypoglycemia) from time to time. A cold, the flu, or other sudden illness can cause high blood sugar levels. You will learn to recognize the symptoms and distinguish between high and low blood sugar levels.

What are symptoms of high and low blood sugar?

High and Low Blood Sugar Symptoms

  • Need for frequent urination.
  • Drowsiness.
  • Nausea.
  • Extreme hunger and/or thirst.
  • Blurring of the vision.

How does a diabetic feel when blood sugar is low?

Symptoms usually occur when blood sugar levels fall below four millimoles (mmol) per litre. Typical early warning signs are feeling hungry, trembling or shakiness, and sweating. In more severe cases, you may also feel confused and have difficulty concentrating.

What are 3 signs and symptoms that tell you she has low blood sugar?

Symptoms of Low Blood Sugar

  • Fast heartbeat.
  • Shaking.
  • Sweating.
  • Nervousness or anxiety.
  • Irritability or confusion.
  • Dizziness.
  • Hunger.

What does it feel like when your blood sugar is too high?

Hyperglycemia (high blood glucose) means there is too much sugar in the blood because the body lacks enough insulin. Associated with diabetes, hyperglycemia can cause vomiting, excessive hunger and thirst, rapid heartbeat, vision problems and other symptoms.

Which is worse high blood sugar or low blood sugar?

Both low and high blood-sugar levels lead to serious health consequences. High blood sugar may cause nausea, vomiting, or shortness of breath, while low blood sugar may cause confusion, dizziness, blurred vision, seizures, unconsciousness, or even death, McDermott explains.

What causes blood sugar to drop suddenly?

Your blood sugar can drop quickly if you don’t eat enough food or you skip meals. It can also happen if you take too much medicine (insulin or pills), exercise more than usual, or take certain medicines that lower blood sugar. Do not drink alcohol if you have problems noticing the early signs of low blood sugar.

Is type 2 diabetes hypo or hyper?

Half (49 per cent) of people with Type 2 diabetes (excluding those treated with insulin) experienced at least one ‘hypo’ – an episode of low blood glucose that can result in symptoms ranging from sweating to a loss of consciousness – during a fortnight period, according to a new survey by Diabetes UK.