For several weeks I've been experiencing pretty significant pain that comes and goes on the side and front (above the knee) of my right thigh. It feels likes it's nerves. It's not muscular or bone. The pain feels as though it's on the "top" or very close to the outside edge of the skin. The pain will just all of a sudden appear (attack). Burning, Needles, Numbness. Sometimes VERY SHARP - like a knife. Keeps me awake at night. Ibuprofin and Tylenol don't seem to help much. Has anyone else experienced this? What could it be? What do I do? I've had this before, in my right thigh as well, but much milder and it always went away. Before it was just a bother. But this hurts and is effecting my life and tennis game. Please help.