Retrovermian Arachnoid Cyst

I have a retrovermian arachnoid cyst that is approximately 2 cm in diameter, as my mri paper tells me. I am going to a neurosurgeon should be within a week. As of right now it says it is now resulting in a "significant degree of mass effect upon the adjacent cerebellar vermis."

apparently my cyst is symptomatic though because of my daily headaches and chronic migraines, which have gotten worse over time. I have a headache usually once a day, sometimes none, sometimes two. And a few times a month I am getting serious migraines where it stops me from functioning. I am 18 years old and this really sucks. Anyone have any info on this or know of anything? I couldn't find much googling it.

I sincerely appreciate nay help anyone has to offer. It sucks being young and getting this stuff.