Trishann, the upper legs have presented in two different ways so far. My right leg went totally numb and when I tried to use it, it failed me and I fell. The left one gets a spot of pain while I'm exercising, which leads to weakness, bringing me to an abrupt stop. I have to wait for it to pass to carry on. Its also hard to explain the way it feels as its quite unsettling. This happens almost every time I exercise.
I was also diagnosed via EMG/NCV and I have seen one neuro who was useless. I'm waiting to see another one and hoping he'll be better than the last. (sorry to all if I'm repeating myself here)