Head ache for a year. ct scan clear, doctor & neurologist diagnosed as primary chronic tension ha. ha ranges from mild to very painful. do i worry?

Control the headache: It's good that you are being followed by a neurologist for your headache. To help monitor your response to therapy, maintain a daily headache log (timing, duration, frequency, location, associated characteristics, triggers, etc). Identify and avoid your headache triggers. Take the log with you to your next neurology appointment. http://www.nlm.nih.gov/medlineplus/ency/article/000797.htm