Sleep and Seizures

  I am a 40 year old women and have been having uncontrollable muscle jerks in my sleep for about the past 2 years.  Lately, I have been waking up in the middle of the night because not only does my body jerk, but my head jerks and I feel like I cannot swallow or breath.  When this happens I make an uncontrollable grunting sound (pretty picture huh?).  I notice that I usually have a headache when I wake up, although I am prone to headaches and migraines.  
  I initially went to the doctor for the body jerks and he subscribed Klonopin which does work, but makes me feel terrible hung over.  Now with the increased head movement I am wondering if I am having some sort of seizure.  This also happens when I am extremely stressed or have not had my usual 8-10 hours of sleep (I need this much just to make it through the day!).  I have always been a very deep sleeper and dreamer.
  With the news of Florence Joyner dying in her sleep due to a seizure, I am feeling frightened.  Can you recommend what types of test one has to determine seizures etc.?  I have been diagnosed with Fibromyalgia, have severe Endometriosis and for that last few years have had extremely low white blood counts.
  Thanks in advance for you help,
  Nancy
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answered 10/28