For several months now I've been experiencing some strange symptoms. When I get up to walk or when I am getting dressed I will sometimes experience an episode where I start to feel light headed. I don't get real dizzy but I have a dropping sensation. Then my legs begin feeling as if I can barely move. I will feel like I'm moving through quicksand. I sometimes feel that I am about to pass out. It lasts for anywhere from just a few seconds to maybe a minute or two then it gets better. After a little while I feel normal again. I don't shake or feel any spasming. I don't know if it could be sugar related or a nervous disorder.