I have been having these sharp shooting pains at the back of my head, more towards the left side. These pains last for about a second, sometimes 3 to 4 seconds and come at intervals every minute or so. This normally happens during winter and initially I used to be worried. But this has been happening since the past 17 years - once a year during winter - normally starts late night and goes on till morning. What I have been doing lately, and it works, is that I place a Hot Water Bag at the area of pain. Also during my morning Shower, I allow the hot shower water to fall on that area for couple of mins. The pain subsides and eventually disappears. This has helped me. Please do give it a try.

I do not take any pain killers.