You can also get pins and needles in the distal ends of extremities when your blood becomes alkaline from blowing off too much carbon dioxide. (lactic acid produced from exertion acts to help balance out the acidity/alkalinity of the blood, but when you stop the exertion there may be a lag before your breathing rate readjusts)
Heavy breathing could be the culprit (it often is for me) but certainly bringing it up to your doc is a very good idea.
Last edited by KnottedYet; 06-27-2007 at 08:08 PM.
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