chiari is also associated with obstructive sleep apnea. I went to a neurologist first for the migraine. They thought I had a brain tumor. They didn't find one, said I had pseudo tumor cerebri and chiari then sent me for a sleep study and low and behold, I have sleep apnea. The surprising symptom of chiari I just found out about was hoarse voice. At times I sound like Marge Simpson, but I assumed it was my smoking. Well, now I know.