Hi Jamie .....
So sorry you have had a miserable time dealing with your AN.
Although I have not gone through what you have, I can empathize with you on the fears associated with regrowth.
First of all, (and you can private message me, if you would rather) are you going back to the same doctors who treated you the first time? If so, have they told you which surgical approach they will use this time? I truly hope you are going to doctors who are greatly experienced dealing with acoustic neuromas, especially one that has grown back.
In my case, I went to experienced doctors (different ones) for both surgeries. My first surgery was via retrosigmoid approach. The second one (three years later) was via translabyrinthine approach. Regarding the recoveries: the first recovery was much more difficult and took longer than the second time ..... mostly, I think, because my brain/body had already adjusted to the balance issues after the first surgery. That being said, I did not have facial issues either time ..... except for some mild facial weakness after the second one.
Many thoughts and prayers.
Clarice