I've had two episodes where, in one case, one whole side of my body would not cooperate with the other (ie. my right leg wouldn't move)--I was dizzy--but only the right side was numb, and then last night the same thing happened, but both sides wouldn't cooperate with each other. I had to grab onto things to keep from falling and finally had to crawl. This is at the tail end of the flu. What's going on? Two nights ago I took Robitussin and the first episode happened after that.