Ok recently after alot of awkward one armed manual labour one day (using good arm) i noticed weakness in the right arm (similar stability issues and small amounts of numbness in the tip of the thumb but alot better strength and dexterity wise than the left), saw the neurologist after that where he decided to test for kennedy syndrome, but from what I can see the symptoms are all wrong. That night I slept awkwardly and woke up with a burning pain in the trap and shoulder. In the morning I couldnt even lift my arm above my chest/hold it out straight infront of me, and the numbness moved up my thumb and into the top edge of my forearm. so....anyone have any better suggestions? its sounding more like a trapped nerve in my neck now as i do feel verry achey around my neck, the neurologist was convinced its some kind of condition though rather than a physical cause, i do think it might be worth pushing on with scans and conduction tests while im waiting the 3 weeks for the results of the blood test though.