Before I knew I had an AVM (arteriovenous malformation), I had headaches that would last for hours on end. After I had surgery to remove the AVM from my neck, I joined an online AVM support group (http://www.avmsurvivors.org/), and it seems that many of the people on there who have AVMs or have had them removed suffer from horrendous headaches.
I'm not totally clear on your question. In the title, you ask about Migraines, but in the rest of your question, you talk about headaches. There's a definite difference.
Headaches are a common symptom of AVM. In someone with a genetic predisposition to Migraine, an AVM can also trigger some Migraines.
I am new to this site so sorry to jump into the conversation, I found that I have an AVM in 2008 deep within the left side of my brain (speach area) they have told me that I will loose my ability to speak if they have to go in and remove it. I have been dealing with very bad headaches for as long as I can remember,I am turning 50 this year. I get headaches about 4 days a week some last as long as 22 hours, they feel like they are pulled muscles in my neck and down the right side of my back. I have been going to accupunture for about 3 months and it helps some but they continue, is this commen with AVM's sorry if I misspell but I think that it maybe affecting my spelling as well. I have asked many doctors to help with my headaches but no one really knows how to help. I was told by my doctor last week that I should have the AVM removed even though I will loose the abilitly to speak and the moment he said that the headaches got worse so I know that stress has a lot to do with them as well i am learning that AVM's can reduce the blood flow to the spinal cord that can cause back and neck pain, is that true?
I have never asked for help from anyone but I can no longer deal with the reality that this illness may win.