See a doctor for a neurological exam
Get an MRI of the brain and spinal cord
Ask about a lumbar puncture if needed
Ask about evoked potential tests if needed
Get blood tests to rule out other causes
Watch for symptoms that come and go over time
Watch for numbness or tingling
Watch for weakness in one or more limbs
Watch for vision problems
Watch for double vision
Watch for balance or coordination problems
Watch for dizziness
Watch for fatigue
Watch for bladder or bowel changes
Watch for trouble walking
Watch for symptoms lasting more than 24 hours
Seek urgent care for sudden severe weakness or vision loss