I have been suffering from headaches from a long time. Most of the times I get pain in right half of my head or full head. But now I also get pain in left side of my head above ear. It happens to me 3-4 times in a day and I feel sudden sharp pain at a single point for 5-6 seconds and then the pain disappear but leave me sign mood swings, nausea and full head pain sometimes. I can’t concentrate on my studies because of these random headaches. Even pain killer doesn’t works for me. Please help!