I've been experiencing similar symptoms today. There is no pain anywhere else (ie. jaw) but it feels like, intermitantly, there is ice water passing through the veins around my elbow. Or like when your are just getting your circulation back from a sleeping foot or other limb. Don't know what to make of it.
I am 34yrs old. I have type 2 diabetes (nothing severe enough for meds). I very recently quit smoking (yay!).
I wonder what's going on. I'll have to mention it my Dr when I see her on the 18th of this month.