im a teenager and i get sparks over my body either when i go excersise, or when i start feeling anxious. im overweight but it would happen even when i didnt move at all so i dont think its entirly rubbing of dry skin.its similar to lilpeeps [ When I get hot, i get a pins and needles feeling all over?? ] situation. its painful and if i were to rate the pain at its strongest it would be the same pain as when you burn your finger on a frying pan and not wash it with water, but slightly less painful. ive had it for months, do you know why this happens and how to help it.