I am a 52 year old femal with a history of migrane headaches. I have a family history of cerebral anuerysms; my father dying from one at age 52, and my grandfather at 54. Recently I began having a different type of headache, centered behind the eyes, with very intense stabbing pain. I have also had neck pain radiating into shoulder, arm and back. disturbances to peripheral vision, dizziness, and tingling to fingers, and tremors to my right hand. Cardiac concerns have been ruled out. I recently had a CTA which revealed a "diminutive" left vertebral artery. The report in fact said it was virtually non existant. The right vertebral artery was slightly enlarged with calcification across "nearly the entire circumferance." My general practioner does not believe these findings are related to my symptoms, and has refered me to a neurologist. Regardless, he does not believe anything can be done to reverse the calcification, believing angioplasty to be too risky as the artery is so small. What are the risks of having an absent left artery, and a right artery that is nearly 100% blocked. What is the likelyhood that I will suffer a stroke, and what will such a stroke affect? Just worried sick that I have this ticking time bomb in my head, and I have to wait a month before I can see a neurologist.