I Recently Began Getting An Intermittent "heaviness" On My Right

I recently began getting an intermittent "heaviness" on my right thigh ...about 2/3s up.... It is an area about the size of my palm...and I feel like my clothes are heavily starched right there...like there is a small amount of weight on it. The feeling only lasts for a few moments. I am getting them several times a day now....
Ever hear of this before????