--COULD stem from neuropathy, but I'm intrested in how your other diagnoses were arrived at. It's very hard to be diagnosed with Central Pain without an MRI of brain and upper spinal cord to confirm lesioning of the spinothalamic tracts:
www.centralpain.org
And, are you getting the trophic changes associated with RSD/Complex Regional Pain Syndrome--temperature disruption in the affected limb areas, color changes, sweating disruption?
http://neuromuscular.wustl.edu/senso...tml#idiopathic
Moreover, all the symptoms you listed could be explained by not only a systemic neuropathy, such as Chronic Inflammatory Demyelinating Polyneuropathy (CIDP--sort of the longer, more chronic form of Guillain Barre sydrome), but also by central nervous system demyelinating disease, such as Multiple Sclerosis of Acute Demyelinating Encephalomyelitis, OR even by the compression issues in your cervical spine. The problem with neural symptoms is that many different etiologies can result in exactly the same symptoms and the process of elimination to come to a diagnosis is often very long and expensive. I may be inacurate, but something in your description hints at doctors throwing terms around to explain things they're unsure of without a lot of systemic testing and thinking.
Definitely think you should get that MRI--would the facilities make a discount or pay-a-little-at-a-time deal? You should be checked for demyelination in the central nervous system and for compressive effects in the cervical spine.