Is this just your hands suffering because sometimes if it is in other areas as well it can because your not hydrated enough you would need to up your fluid intake
As there are many reason of this painful pins and needles in your fingers of hand, a visit to doctor is necessary for differential diagnosis. The most probable cause can be carpal tunnel syndrome. This occur due to compression on the median nerve of wrist. For more information visit:
http://www.nlm.nih.gov/medlineplus/ency/article/000433.htm
http://www.nlm.nih.gov/medlineplus/ency/article/000433.htm
Yes, just my hands although sometimes get a pain in my left arm