I have a 28 year old women and she has noticed a stance pins and needles feelings in her hands and feet she says that she has been feeling very tired lately and when she goes to the gym she just feels week and claims the inability to exercise has made her feel depressed also her vision is getting worse she also said that she was a gymnast in high school and never had balance problems before. She says her symptoms come and go. She has periods of fatigue and balance problems, but the majority of the time she feels just fine