Hello, ever since I was little I d get a random cramp in my thigh that last about 20 seconds, and fades in and out for the 20 second duration. Its located on the outer side of my right thigh. I am now 20 and still get it. Until recently, it was more of a sensation than a pain. It reminds me somewhat of the leg stretching sensation of achieving orgasm during intercourse. Lately however, it has been more painful. This may just be a simple cramp, but I was wondering why always the same leg, and why have I always had it?