4 -5 days before I feel some sharp pain in my left side of forehead for 2-3  seconds which comes and go 2 3 times in a day for 3 days after that I don't know coz of this may be I feel some tightness in left side of my forehead, may be because I am noticing too much. I am confused about it please help me to find out what should I do, should I visit the doctor or it just because of I am too much thinking about it.