Tight Upper Traps, Burning/Numb/Cold Shoulder Blade Area

This has been going on for some time now. Every time I do bicep curls, triceps extensions or carry something it seems like my shoulder blade muscle gets on fire. I also get a lot of tight feeling in my upper traps. The other bit is that I get a lot of neck pain and also a cold, burning sensation in my shoulder blade region. Doing rear delt exercises where my shoulder blades move makes the area go crazy numb and cold sensation goes into my arms and hands.

Please help me, what could be wrong?