Hi Rebecca,
I don't have an answer for you, but I can tell you my experience and you can let me know if yours is the same.
I had spasms for years before my tumor was discovered. I did A LOT of self-care right after the diagnosis, and for years after. It's been more than ten, and I've gotten out of my self-care routine. And, coincidentally, I recently started having them again, under my left eye. The more I focus on being aware of the twitching, the more it twitches. Now I try to reinstate my relaxation stuff, and do restorative breathing. Of course, if this isn't your experience, and you don't receive a callback soon from the neurologist, can you find another one? Do you have one of those local registries for specialists in your area? Some of the registries will let you look for providers by specialty AND miles willing to travel!