Hi and welcome to the Chiari forum.
The problem u have encountered so far has been , being seen by Drs ill educated on chiari and it's affects and how to even identify it correctly.
Once u find a true chiari specialist u will see a difference in the care and treatment u get.....
We do have a list of Drs names compiled by the members of their Drs...they only added the names if they were happy with the care they received....this list is not meant as a referral, but a means to help u get started with ur research of drs....visit and interview a couple different Drs and then decide which is best for u.....
http://www.medhelp.org/health_pages/Neurological%20Disorders/DOCTORS-LIST-FOR-CHIARI-SYRINGOMYELIA/show/1062?cid=186
The issue with ur voice and the swallowing issues r an indication u need to get to a specialist and not wait too long and do not go with a Dr that promises to "cure" u, there is no cure for a malformation of the skull...only treatment to slow progression and restore CSF flow.
"selma"