I have noticed my left foot in the arch area, has been pulsating. It feels like an artery or blood flowing when I am laying down or just reading. Is it? I do run/walk alot and have had a few back strains but nothing major..not sure if that has anythng to do with it but thought I would throw it in just in case. I do have high arches and wondered about that also.Does anythng make any sense..or is it smething I should look into? There is no pain or anythng just strange sensation....