Chronic tension-type headache is a condition where you have a tension-type headache on at least 15 days every month for at least three months. Tension-type headaches are usually felt as a band or across the forehead. They can be uncomfortable and tiring, but they do not usually disturb sleep. Most people can carry on working with a tension headache. They are not usually made worse by physical activity, although it's not unusual to be a bit sensitive to bright light or noise. However, chronic tension-type headache can be a wearing and depressing condition, and the headaches can feel as though they are nearly constant