Hi and sorry to hear about the narrowing of theses arteries and the troubling thoughts that this and the prescription and lipitor have caused you. There are many people out there who take lipitor and don thave any of these side effects. You could be one of those lucky ones. Don t be scare but be brave to face them with a positive mental attitude. If the narrowing of these arteries was diagnosed a year ago, I will suggest that you get the MRI repeated and confirm that these findings are actually permanent or were simply changes associated with the brain concussion and also because you have no symptoms. Lipitor would be a good choice if there is already any narrowing and your doctor decides to get very aggressive at maintaining good blood lipid levels despite the considered normal values in individuals with not problems. Hope you find this helpful and informative. If you have more questions, I have answers, keep them coming. I wish you well and success with your treatment. Dr. Ditah, MD.