The symptoms of cerebral insufficiency are summarized as follows: 1. dizziness, especially sudden vertigo. 2. numbness of the limbs, sudden numbness of one side of the face or hands and feet, some with tongue and lips. 3. temporary slurring of words or speech. 4. limb weakness or inactivity. 5. headache different from usual. 6. sudden unexplained fall or fainting. 7. transient loss of consciousness or The patient may experience sudden changes in personality and intelligence. 8. generalized weakness and limb weakness. 9. nausea and vomiting or fluctuations in blood pressure. 10. drowsiness and sleepiness throughout the day – narcolepsy. 11. involuntary jerking of one side or one limb in patients with cerebral blood supply deficiency. 12. sudden but temporary blurring of vision in patients.