AVM in the Vein of Galen

Hey I am a survivor of AVM and was wondering if anybody else has had it in the Vein of Galen? If so, did you have to go back for more surgeries or treatments? I’m wondering because mine was found and fixed before I was even a year old and have never had any problems after until lately. Over the past few years I’ve been having major headaches all the time, confusion and a few other strange symptoms in my head. I had a cat scan in October and the doctor who treated me as a baby said that my “ventricles have enlarged” but that at that time he wasn’t too worried and he’ll keep an eye on it. So I am wondering if anybody has had anything similar happen or if they know if my ventricles have anything to do with my previous AVM?