I too have the same problem i just sneezed a bit ago and the pain started on in my back by my shoulder blade, moved down my right arm into my bicep just above the elbow, then got to my wrist where the pain was excruciating.
my name is abdalla from egypt im 30 175 cm 105 kg
i have the same problem i fell strong pain in my arm after sneezing not always but when it happen its very strong like fire starting from my shoulder and moving in my veins to the tip of my finger it very strong it makes me cant do any thing for about five minutes
i ask many doctors and every one of them haven't hear any thing like this.
i try over the net and i didnt find any help .
is any one have an idea.