Mar 5 scalp tender. Then around noon twinges I left front of head. Remember hit that spot on light switch two days prior. In last 11 days twinges in that area have ceased but it is still tender. Two days ago discomfort on left side of head. Yesterday discomfort around left eye. Early this morning twinges on left top of head about two inches behind original twinges. Unable to fall back asleep. No visual problems or seizures.