Dear Jayden44,
The way it is writen in the report it is not confirmed you have a Chiari and if you do, it appears to be very mild since there is no evidence of obstruction.
Have you done an MRI to further evaluate it?
Dont worry! If it is Chiari its not life or death. I have Chiari and with meds its livable! unless you need surgery then itl be better after. dont be scared! dont let a disease if u even have one run your life! take control and tell yourself its gona be ok!I hope everything is ok! dont stress its proly just sinuses!:)