57 year old female. Went for CT scan because of persistent headaches after car accident, likely concussion. This showed white matter changes which led to having an MRI. Showing moderate small vessel ischemic disease, particularly likely if patient is chronically diabetic or hypertensive. I have high cholesterol (familial, I am not overweight) controlled by medications for almost 25 years, and high blood pressure, also controlled by medication. I exercise, a lot, biking 30-50 miles a week.How freaked out should I be about this? Do I need to see neurologist? Primary doc just says you re good.