Somebody please help me. i can hardly do anything anymore my arms & neck are visibly deteriorating i've been to an ortho, 2 doctors & emergency twice.

Weakness : If your muscle mass is actually deteriorating and weakness I would recommend a visit with a neurologist.

UE stiffness: Consider that may be as benign as TMJ-, temporomandibular joint pain, even reflux with or without H pylori a bacteria or more rarely and serious cervical disc disease or ALS- amytrophic lateral sclerosis. Would f/u/ w/ dentist and neurology-or as mentioned earlier an autoimmune process