Hi and welcome to the Chiari forum.
For many of us it took yrs to get a DX too....many Drs do not feel Chiari can cause symptoms...and do not bother to give the DX to patients....they consider it an incidental finding.
And ruling out Lupus, lymes, and MS is good in that Chiari symptom are similar to all of those....
We do have a list of Drs on here compiled by the members here, it is not a referral nor an endorsement...please us it as a tool to research the Drs.....
http://www.medhelp.org/health_pages/list?cid=186
A CINE MRI is suggested as it can help determine if u have a CSF obstruction....and or over crowding.....u will also want to rule out ALL related conditions like syringomyelia, disk issues, ICP, POTS, and ehlers-danlos and sleep apnea.
Even vitamin levels can be helpful and thyroid testing....Chiari can affect all aspects of how our bodies work....and each of us is affected differently.....
Know u r not alone, we r here for u...