Feeling Tired, Headache and Lightheaded Or Feeling Dizzy

This page contains some of the conditions that could be the cause of these symptoms, although it is not a complete list of possible conditions.

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Conditions

Heat Exhaustion

Heat exhaustion and heatstroke are two potentially serious conditions that can occur if you get too hot.

Symptoms of this condition may include:

  • Lightheaded Or Feeling Dizzy
  • Headache
  • Dizzy Or Lightheaded On Standing Up
  • Muscle Cramp
  • Feeling Sick Nausea

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Carbon Monoxide Poisoning

Carbon monoxide is a poisonous gas that has no smell or taste.

Symptoms of this condition may include:

  • Abdominal Pain
  • Lightheaded Or Feeling Dizzy
  • Headache
  • Feeling Sick Nausea
  • Vomiting

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Hypoglycaemic Disorder

Hypoglycaemia, or a "hypo", is an abnormally low level of glucose in your blood (less than four millimoles per litre).

Symptoms of this condition may include:

  • Lightheaded Or Feeling Dizzy
  • Feeling Irritable
  • Sweating
  • Tremor
  • Confused Or Muddled

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Our Health A-Z contains more information on the above symptoms.

Important: If you have these symptoms, they may be unrelated to any of these conditions listed. If you are concerned about your symptoms then you should see a doctor.

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