question: Today my doctor told me that I have a narrowing of the arteries in my brain stem and brain. He prescribed Lipitor. My other blood tests reveal perfect results so far. He found out about the arterial problem from an MRI that was done last year as a result of a concussion. Now I am really scared! I am a very active 65 in good physical condition. Lipitor's side effects make me very nervous, but I do not know what to do. Is this a death sentence or what?