Just to add, whenever you are seeing signs that are bilateral, that should be suspect of something more sinister...both your arms getting numb is a sign that something huge is compressing something that connects both arms to give bilateral signs...i.e a huge prolapsed disc or a cord compression...either that or you have multilevel disc prolapses...this not uncommon but it really is rare within your age group...your neck has to be pretty bad for this to be happening, usually traumatic events are the main causes...you can find them in the elderly though cause they can have pretty bad degenerative cervical spines...it is rare to have multilevel disc prolapses to the same degree is what I mean...so my bet is on either a huge prolapsed disc or a cord compression...this would go in hand with the suspicious gait...

I apologize for my lengthy post