Hi and welcome to the Chiari forum.
First, although ur herniation was quite large, it is not the size of the herniation that is most important, but rather the overcrowding and CSF flow.....
To have a successful chiari surgery is to restore CSF flow...having remaining symptoms is not uncommon.
Surgery is not a cure, but u should be able to get some relief....and it seems that u may have something else going on or r dealing with possible nerve damage.
What I was told in regards to healing is it can take up to 2 yrs to fully heal....and I am almost 2 yrs post op and I must say I can see differences just from last yr this time....so give ur self time to heal...and do not over do...as u well know those of us with chiari will have limitations...chiari is life altering....
We do have a list of symptoms here as well....see our Health Pages-
http://www.medhelp.org/health_pages/list?cid=186
Plus we do have a thread which is much larger as we like to call our manifesto of symptoms....the shorter list is more what most NS will accept as chiari symptoms.
Can u tell us a little bit more about ur surgery, was it a dura plasty?..if so what type of patch did u get?
"selma"