I've had tingling concentrated in a spot in my head. I asked a neurologist about it and he said they were muscle spasms. Please see private message for some info on lymph nodes.
I've had shooting pains in my head on occasion- very powerful, but am not sure what they are- suspect a spasm of a nerve, a blood vessel, or maybe even a muscle, but have not asked anyone about them. I do have TMJ dysfunction and a history of chronic migraines.