Nerve Disorders More Condition_symptoms Itching Degenerative Nerve Disorder, Where Do I Get More Information?

Degenerative Nerve Disorder, where do I get more information? - nerve disorders more condition_symptoms itching

My brother had a lot of problems, which are 40 and take extreme weakness in his left arm and foot. It had always been very active, but said that almost a year that had problems. He goes to DR, but unfortunately she has a job to make each appointment 2 weeks in advance, so visit when his blood work from Dr. Said is considered a degenerative neurological disorder and should be a specialist? Ideas. I think the Lou Gerig disease. Thanks