Good news again!
I saw the surgeon again on Monday. He wants to see me in 2 months for another angiogram, just to be sure my brain didn't make another arteriovenous fistula. They sometimes do that. If I'm still all clear, he says that it's "history." Meaning that I'm better than new for life, and it's all over.
It's really wonderful. Most people who have this just suddenly drop dead, and nobody knew it was there. By having this happen the way it did, and in a place near a bigtime brain hospital, I've been very very lucky and blessed and any other good term for it.