[Galadria]

My husband the vascular surgeon says that, at 17, if you don't smoke and your toes are pink, the problem is probably not with your circulatory system, but with either the nervous system (as Z suggests) or with diabetes, which is actually the nervous system, too, for the paresthesias or numbness of the feet that are associated with diabetes are caused by the effect of the raised blood sugar on the nerves of the feet and lower legs. Get checked for diabetes, and, if that is negative, get a full physical with the possibility of a neurological consultation, later. Do it now.