Hi and welcome to the Chiari forum.
I agree with Lisa, yes most definitely get another opinion, but u will need a true Chiari specialist....we do have a list for u to use to research Drs...be advised the list is not a referral nor an endorsement and u may have to travel as the list is only made from Drs members here have been to and liked....so it is not all inclusive of all the Chiari Drs out there.....
And there does not seem to be that many out there, but educate urself and u will know when u found one...
The list is in our Health Pages as well as other tips and info -
http://www.medhelp.org/health_pages/list?cid=186