Hi. Did anything happen 8 weeks ago? Did you have an injury,fall,were sick etc? Anything in your past you can think of that may be impacting your health now? Well my 1st set of emg/nc did not show PN. Then it was repeated a few months later and then I was dx with PN. I agree you should get an mri. Also have you had blood work testing your b12,diabetes,auto immune etc? I encourage you to ask for a complete blood work. What type of doctor are you seeing? I hope you get some answers and relief.