HI Peacelilly,
I'm sorry you're dealing with so much. I also have lupus, and simple partials. I had my carotid and other arteries checked for abnormalities last year. Everything came back normal, thank goodness. It sounds like you went through quite an ordeal. (((hugs)))
I don't have any advice for you, but it would be very interesting if the carotid artery fix was the solution to your seizures. What a miracle that would be!
Wanted to offer some encouragement to you!
Ginny