Just diagnosed

I had an MRI this week and it came back saying that I have a 11mm chiari. I was having very bad headaches witch is why I went to the dr. I also get neck pain, right eye twitches a lot, arm and shoulder pain witch I thought these were all just separate pains until I found out and started reading up on chiari. I have a neurosurgery appointment in nov. If you guys have any advice on what I should to or what might happen next please let me know. I kinda nervous because I don’t really know what to expect and I don’t want this to interfere with my job.