Re: Sudden "electrical shocks" in the head
I've had those same shooting pains in temple or elsewhere on the skull, on and off for years. Also was a big time migraine sufferer in my forties and had bad regular headaches prior to that. Now I still get the occasional migraine or bad tension type headache.
Back to the shooting head pains -- Really get your attention, don't they???
I have seen them described as ice pick headaches. You can look this up in books or on the web. Also, the trigeminal neuralgia someone mentioned is a possibility. Thus far I've had them come on go at intervals during a day, but lasting just a few seconds. I've not yet had one that lasted longer than a minute. But once they start, they are likely to repeat a few times more the same day (in my experience, anyway).
Naturally I expect more and am rewarded with more!
It's all fun, isn't it? I can't figure out when they will hit or why, but I am also a very anxious person and a worrier and prone to panic attacks so I figure it's all tied in together.
I would say try not to worry about it. It is really quite common. Of course, you could see a chiropractor or physician for additional info but I'm sure you are OK.