For the last three days I ve been experiencing a warming sensation in my lower right calf. Skin is not warm to the touch and leg moves normally. I m a 73 year old woman in good health, not overweight and active.. No new medications, just Advair for Asthma, no attack for many years and Flonase for Sinus plus multi-vitamins, Calcium, and cranberry tabs( prevent Bladder infections, due to prolapse). No heart issues other than Tachycardia.