I visited an emergency care center this Monday for head aches and vomiting. I was told the head aches could be caused by the increase of caffeine, my lack of sleep and financial stress. I have tried working on both this week and my head aches have decreased but all of a sudden I have an extremely sensitive spot in the middle of my head. I can't touch my hair in the surrounding areas without it giving me a pounding head ache. I don't recall hitting my head on anything recently. Should I be concerned?