Hi and welcome to the Chiari forum.
I have more questions like the above poster....did they rule out ALL related conditions?
That was a fast turn around from DX to surgery...what other symptoms did you have? Did they do testing to see if you had a CSF obstruction?
Surgery for Chiari does not always relieve ALL symptoms...this is why it is good to know if you have any other related or non related conditions as well....as there are many conditions with similar symptoms.
Where there any other issues with your spine, such as stenosis or herniated disks?
I have not had the surgery, so I can not answer that. Sorry. But, I'm sure someone will come along that can comment.