my daughter is a swimmer. starting Monday, she felt her right hand start trembling. her right leg drags when she try to lift it and she collapsed in the house. what would be the cause? Back in last Dec, after a swim meet, she collapsed and both of her legs give out. she was in the hospital for 3 days and did MRI, blood test, all normal. She was able to stand up the next day. So our neurology thinks it is some type of post virus thing.