Foraminal cervical stenosis

  My husband has been diagnosed with fibromyalgia,(2EMG's) benigh fasiculations (except for spontaneous activity in the right gastrocenmiusus(sp?)) and cramping,essential tremor,and has twitches.... in his face and around his eyes,lately tripping and balance problems and eye drooping have increased as well as his drooling ,the myoclonus which only used to occur at night will now happen when he's just sitting.He claims no weakness . A recent MRI showed severe cervical and lumbar stenosis,with a forminal stenosis in the cervical area. My questions:
  1) what if any of his problems might be caused by this and 2)Are there any disease associated with these conditions?(Please note this has been progressive over about three years so we are not concerned about ALS).
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Dear PENB:
1. Some of the symptoms you enumerate (pain, fasciculation, cramping, balance problems, and even jerking) can potentially be caused by severe cervical and lumbar canal stenosis
2. The symptoms that you mention bring to mind a rare syndrome called Kennedy's disease or X-linked Bulbospinal Muscular Atrophy. An experienced neuromuscular specialist should be able to figure out after a good clinical examination and review of the EMGs if this is a viable clinical possibility. Genetic testing to diagnose or rule out this disorder is readily available.