What exactly are anxiety headaches?

Anxiety HAs. Are tension headaches occurring with other symptoms of anxiety, due to elevation of adrenaline which affects the blood vessels in your scalp, leading to headaches.
Anxiety headaches. Anxiety headaches are those that are tiggered by the emotions and stress. These headaches may have more than one cause, so it is important to get regular physical examinations to determine the exact causes of any headache condition.