I have a history of migraine, from classic with aura for two of my highschool years to transformed (no aura) beginning in midlife. I was referred to a neurologist when the new migraines - strictly on my right side - became severe and continuous. After trials of half a dozen preventives, we settled on lisinopril as the most effective for me. Concerned about my lower response to pin-***** on my left side, my neurologist sent me for a vascular MRI. results indicate