Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Occipital Neuralgia ?
    ### Response:
    Occipital neuralgia is a distinct type of headache characterized by piercing, throbbing, or electric-shock-like chronic pain in the upper neck, back of the head, and behind the ears, usually on one side of the head. Typically, the pain of occipital neuralgia begins in the neck and then spreads upwards.
    