For just over a week I've been feeling really lightheaded and dizzy and shaky. At work last weekend I fainted twice, don't really know what happened just remember opening my eyes with a friend calling my name in my ear. Then all week when I have been out shopping or even just tidying up a horrible dizzy sick feeling comes over me when I'm walking and my legs turn to jelly and I just fall to the ground. Its so horrible and I don't know why its happening. Was reading in pregnancy books that its normal to feel like this but I'm not sure anyone else experienced this, what should I do?? Xxxxx