Migraine with aura: This condition can cause transient neurological symptoms, including sensations of electrical shock, often unilateral and can be accompanied by other aura symptoms such as visual disturbances.

Trigeminal neuralgia: Characterized by sudden, severe, shock-like or stabbing pain typically on one side of the face, which could be interpreted as an electrical shock sensation.
Hemifacial spasm: Involuntary muscle contractions on one side of the face, which might feel like electrical shocks.
Temporal arteritis: An inflammation of the blood vessels in the head, which can cause a variety of symptoms including headache and possibly sensations of electrical shock, though this is less common.

Stroke or Transient Ischemic Attack (TIA): While less likely to present with isolated electrical shock sensations, any new or transient neurological symptom warrants consideration of stroke or TIA due to the potential for severe consequences if missed.
Multiple Sclerosis: An autoimmune disease that can cause a wide range of neurological symptoms, including sensations of electrical shock, especially if associated with other neurological deficits.
Brain Tumor: Though rare, a tumor could cause focal neurological symptoms, including unusual sensations like electrical shocks, especially if localized to a specific area of the brain.

Neuromyelitis optica: An autoimmune disorder that primarily affects the optic nerve and spinal cord but can have varied presentations, including unusual sensory phenomena.
Epilepsy (simple partial seizures): Could potentially cause localized sensations that might be described as electrical shocks, though typically accompanied by other seizure activity.
Vitamin or mineral deficiencies (e.g., magnesium deficiency): Can cause a variety of neurological symptoms, including muscle cramps, weakness, and potentially abnormal sensations.