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Seek professional care if you experience any of the following symptoms

• Muscle weakness in the limbs

• Unilateral blindness

• Dysphagia

• Edema

• Slurred speech

• Abnormal sensation (tingling, prickling)

• Photophobia

• Cough

• Neck pain / stiffness

• Impossible to walk normally

• Head injury

• Altered mental status (delirium)

• Disorder of consciousness

• Visual field defect

• Involuntary movements

• Migraine

  A type of headache with throbbing, pulsating pain on one side of the head. Sometimes, visual changes like sparkling occur before the headache. The pain may worsen on exposure to bright lights or wild noise. Triggers for migraine include stress, poor sleep, caffeine and hormonal changes in women.

• Influenza

  An infection causes by the influenza virus which usually affects the respiratory tract (nose-windpipe-lungs).

• Tension headache

  A type of headache with band-like, pressing sensation at the forehead and sides. The causes include physical stress e.g. long periods of desk work and driving, or mental stress.

• Alcohol dependence / delirium tremens

• Acute renal failure

• Bipolar disorder

• Chronic subdural hematoma

  This refers to blood collecting in the space between the brain and the brain's outer covering (dura). It is can be caused by even minor injury or bump to the head. Older adults and those on certain blood-thinning or and bleeding disorders are at higher risk.

• Cerebral infarction
• Meningitis
• Uremia / chronic renal failure