Were you misdiagnosed? Possibly.

You have narrowing and flattening of the spinal cord, stenosis and degenerative change of the spinal cord. Those things listed can cause neurological symptoms.

You might post the spinal MRI information on the spinal disorders and back pain forum and see what people there think.
http://neurotalk.psychcentral.com/forum22.html

With no lesions showing on the brain or c-spine MRI and with spine problems being found it looks less like MS and more like a back problem.