For the last week or so I have noticed a periodic hot feeling on the upper part of my leg. It feels like a hot blanket has been put on it and it is not constant, but has become more frequent. There is no sign of a rash or other marking on the skin. It feels like it is an area about the size of the face of an iron. I am wondering what it might be. My only medical condition is that I had two stents put in three years ago and I have been taking blood thining medication and blood pressure medication for the past three years as well as cholosterol medication. I am 63 years old and am in good physical condition.