Sounds like there may be some early signs of change, which is promising. That link between your migraines and clusters is really interesting, and it makes sense to try targeting the migraines first. I came across this article that outlines how Botox is typically used for migraines, including where the injections go, it might be useful to skim http://injectco.com/services/botox-for-migraines-arlington-tx/ Hope things keep moving in the right direction.