Why do i keep getting shocks in my head?

See your physician: These symptoms may represent sinus issues, anxiety, a specific kind of headache or other neurological condition. You should keep a log of the location, timing, duration, characteristic, and intensity of these episodes and take the log with you to your physician. You might be referred to a neurologist or ENT physician. http://www.nlm.nih.gov/medlineplus/ency/article/000647.htm