Since I was little I have been having a discomfort in my legs. I don't know how to explain the discomfort but its annoying. Its sometimes both my legs or just one. When I walk a lot I sometimes get the pain sometimes I wake up with it. I have taken many test but they have found nothing so far. Sometimes pain medicine works but I rather know what is wrong instead of popping a pill. The pain is through my whole leg mostly the thigh area I feel it the most. It's less discomforting when I elevate but it does not go away. It comes and goes and sometimes just doesn't go away at all. What can it be?