The patient describes a headache with frequent occurrence that is often worse in the afternoon or early evening. The pain is usually on both sides, often at the back of the head and just above the eyes. The headaches last for days or weeks. Aspirin or over-the-counter NSAIDS seem to provide relief.
It is believed that tension-type headaches are due to muscle tension that stems from tender trigger points in the neck and suboccipital area. Furthermore, the rectus capitis posterior minor muscle attaches to the spinal dura that surrounds the brain. When tension is applied to this muscle a tension-type headache may occur.