Hello, You may be suffering from an acute demyelinating event which would be most likely occurring in the brain (and sounds to be purely sensory in nature) by your description although the spinal cord would also be a possible location to look for problems. In my opinion, what you really need that would be obtainable NOW are imaging studies of the brain and spinal cord (MRI with gadolinium contrast) to rule out a type of demyelinating process in the brain or something such as transverse myelitis in the spinal cord. Frankly, I don t understand the purpose of the EMG since you say you have normal reflexes and no muscle weakness. Nothing will show on an EMG in 10 days from now that won t show up today BUT more importantly I wouldn t do that test anyways by the first intention simply because it is invasive (i.e. not very comfortable) and not likely to show anything more than you could diagnose with good clinical judgment if a solid history and examination were done. EMG/NCV studies are MOST helpful when muscles are WEAK or reflexes are severely altered not as helpful when only sensory changes are occurring. I would do the preliminary imaging studies, blood work is fine, waiting for a little time is fine as well but I don t think an EMG is something I would plan for unless you became noticeably weaker. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr Dariush Saghafi, Neurologist