My sister-in-law presented to the ER about 3wks ago with a severe headache. She was hospitalized for over a wek for testing including labs(normal), CT head(normal), cisterogram(normal), lumbar puncture(normal), EMG(normal), MRI brain(normal) but then finally an MRI of her neck showed an area of demylenization. She has been otherwise healthy except for a diagnosis of celiec disease about 3yrs ago. She takes this very seriosly and follows her diet strictly.She continues with headches but now has some pain in her L arm, double vision and hearing changes. She ws given narcotics in the hospital which eased pain a little but is now only taking tramadol prn. Her neurologist gave her few details as to what he thinks is causing this and wants to send to her to the Mayo clinic. Any thoughts on what this problem is or what to do next??