I can tell you that I had migraine auras for the first time ever after my embolization. They lasted a few weeks and faded, I think, as the angiogram contrast agent was flushed out of my system. But I would say that to think of embolization glue as uninvasive seems false to me. It is undoubtedly a strange foreign body that your head will be somewhat startled by.
I would hope they will become less frequent. I assume seizures should always be reported to a doctor.