My mother has been complaining of severe head pressure. She describes it as "it feels like my head is going to blow off". She has a history of depression and stress and her Doctor insists that these are the causes of her head pressure. The only testing I know that she's had done is a stress test. I am trying to help her gather more information on her symptoms and possible causes. Some of her other medical history is: Restless Leg Syndrome, high blood pressure, overweight but not obese, a persistant cough, and poor eating habits. She was complaining yesterday and I took her blood pressure and it was 124/78, but then she told me she had taken a Xanex already. What are some possible causes? What tests are there that may help in a diagnosis?