I will be driving , working, walking or seting and all of a sudden I get a sharp pain in the front of my head and into my eye then it is gone in a matter of seconds . No notice. So sharp is the pain I either grab my head or say ow almost like a jolt. My eye blinks a bit then it is gone. What would cause this it has happened 4 or 5 times in the past 3 months. I used to get migraines but they have been gone for a year now.