Tension headaches cause a dull, steady pain on both sides of the head. You also feel the pain in the neck and the back of the head. Your eyes may also feel tired. Tension headaches can be triggered by many things. These include:
- Muscle tension and clenching
- Lack of sleep
- Bad posture
- Eyestrain
- Stress
- Depression
- Anxiety
- Arthritis of the neck