Two things come to mind:

1) something going on in your neck?

2) possible Thoracic outlet syndrome.

Also do you use some soap or chemical that gets on your hands?
The palms are an acupressure point. Do you lift weights or stress the hands somehow with exercise?

http://healthefitness.com/view_article.asp?id=13

I am not sure about the attribution to organs in the body, but when I cannot sleep sometimes I put a strong magnet in each palm and it seems to relax me. I have a thread here on magnets and how to use them:

http://neurotalk.psychcentral.com/sh...hlight=magnets

When pain or discomfort occur in a specific place (target) and not "all over" a strong magnet can sometimes help alot. I've used magnets for over a decade now for some things.
The really strong ones available now that are not expensive, don't need to be worn, etc. 20min on the target is often enough to help.

Also burning sensations really respond quickly to Biofreeze. It will block burning for hours.