question: Hi, I am a 58 year old female. Back in Aug,2011 I started having problems with imbalance, vigro. I have no dizzness. I have had two cat scans, MRI, spinal tap and multiple blood donations all with a negative result. My problem is I think I have a short circuit with the nerves in my back not telling my legs what to do. Thus, I stand still and move back and forth but cannot make my legs move. My husband has to push me to get started. Any idea as I am really becoming distrubed. Thanks