Anxiety can trigger tensions headaches, which can cause a feeling of pressure in the forehead and at the back of the neck, explains WebMD. Anxiety and other triggers can also cause muscles at the back of a person's head to tense, which can potentially lead to a headache.
In addition to anxiety, potential causes of muscle tension include forms of emotional distress such as depression, according to WebMD. Fatigue and inadequate rest can cause headache symptoms, as can hunger and over exhaustion. Another potential cause of neck tension is poor posture. Some people experience tension headaches episodically, less than 15 days per month, and these headaches often occur in response to isolated events. However, daily stress can cause some people to experience tension headaches chronically, enduring symptoms for more than 15 days per month.
Anxiety is a potential cause of tension headaches, but it can also exacerbate other symptoms that lead to tension headaches. Both anxiety and depression can lead to inadequate sleep, and inadequate rest is a potential cause of tension headaches, according to the Anxiety and Depression Association of America. Anxiety is also linked to fatigue, reports WebMD, and this fatigue can lead to feelings of pressure in the head due to tension headaches.