This year I have noticed several times that my left leg suddenly weakened for a few seconds. It was like I was stepping into a hole, losing my muscle power. Today my left leg totally gave up for a second and I crashed to the ground, resulting in me breaking an ankle Did anyone ever have symptoms like these? I thought symptoms were mostly limited to numbness and tingling, but now I have a limb that quits on me. This is starting to look more like MS... though I don't think I have that. I fit the classic CFS symptoms more, though many are overlapping between these 2 diseases, I understand. This leg weakening is very temporary, a second or 2 at most. I have had problems with a vitamin D defiency and will have a new test soon. I never broke a bone before, so I am a bit suspicious.