Hi arti,   So let me see if I understand this correctly. You are just learning about lesions of white matter on your brain, that may or may not be causing these symptoms, from a MRI of your brain a year ago? What is the diagnosis? Is it Migraine or some other vascular condition? I think it may be time to seek another opinion, in my humble opinion.    Yes, there is growing evidence that Migraine is a progressive brain disease. A recent study showed that Migraines can cause brain damage. Yes, Migraines Can Cause Brain Damage. Also people who have three or more Migraines a month are more susceptible to this damage. For more information, see Is Migraine a Progressive Brain Disease?    Have you had Migraines for a long time? Are they fairly new to you? As you will see in these articles, all this is taken into account. And if your doctor isn't able to help you, it may well be time to consult a Migraine and headache specialist. It's important to note that neurologists aren't necessarily Migraine and headache specialists. Take a look at the article Migraine and Headache Specialists - What's So Special? If you need help finding a Migraine specialist, check our listing of Patient Recommended Migraine and Headache Specialists.   I hope this helps, Nancy