A sudden, stabbing pain in your face or head feels like you'e being attacked with a sharp object. It arrives without warning and is short, sharp and intensely uncomfortable for up to 30 seconds. You've just experienced an "ice pick" headache, and the bad news is that it could recur several times during the day. The official name given to these attacks by the International Headache Society is a Primary Stabbing Headache, and they can occur in migraineurs and non-sufferers alike even when no...