Fibromyalgia/polysensory neuropathy any relation?

  : : Is there any relationship between a diagnosis of Polysensory Neuropathy and Fibromyalgia.  My doctors keep asking do I get alot of sleep?
  : : I haev always been a nightowl and require little sleep.  Would Fibromyalgia haev anything to do with a diagnosis like mine?
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  : Dear Susan:
  : Fibromyalgia is diagnosed when an individual has a set of characteristic symptoms and signs (such as disabling fatigue, muscular aches and pains, tender "trigger" points, and some other rather nonspecific symptoms related to various other systems). Almost by definition, patients with fibromyalgia do not have an objectively measurable problem of their nerves or muscles. Fibromyalgia remains a controversial clinical entity because the patients have numerous complaints but the doctor is unable to find anything objectively that is wrong with any of the patient's organ systems.
  : Sensory neuropathy, in contrast, implies a disease of the sensory nerves in which loss or damage to these nerves can be discerned by tests such as EMG, nerve biopsy, and some other specific tests.
  : Although some evidence exists that fibromyalgia may be associated with a disorder of the autonomic nerves, there is no clear evidence that sensory neuropathy and fibromyalgia are related.
  I thought EMG and Nerve Conduction studies were important diagnostic tools for Sensory neuropathy.  I was told that a Biopsy let say of the ankle would provide NO information about sensory neuropathy lets say that was in the upper face or torso, and that such a biopsy would only serve to provide information about motor problems?
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Dear Susan:
EMG is an important diagnostic test for sensory neuropathy. The sural nerve (at the ankle) is a sensory nerve, and biopsying it may be indicated in some situations. Some specific (and rare) forms of sensory neuropathy may begin in the face or the trunk. Some of the cause of this form of neuropathy may be diagnosed by specific blood tests rather than biopsy.
I hope this answers your question.