Muscle twitching, weakness and pain in legs and back
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If the ER neuro tells you you ahve a problem, have him refer you to the MDA center / office near you.
What you describe is very concerning for ALS.
YOu may want to contact your closest ALS clinic also, tell them your situation. They can be found on the MDA website. Also, you can contact the closest ALS Assn., you should be able to google it, tell them your situation and tell them you need help getting into a clinic.