First post...Does anyone with PLS notice that they are getting "thinner" through their arms and legs? I know atrophy is more related to ALS but after 3 to 4 years of symptoms, maybe longer and a PLS diagnosis, I have noticed that my husband is looking thin on one ankle and his upper arms. He's been inactive for the last two to three years, still able to walk unaided, just not able to exercise. New symptoms are pain in neck and lower back area. Much pain with spastic legs and restless arms. EMG's showed benign when done as of last year. Anyone have any thoughts?