Lucid dream: have i done it before?

A lucid dream means that you know when you are dreaming. all of these things that you are experiencing are normal. It happens to me a lot when I dream. It is your brain creating feelings for you without your control. It might have something to do with what is bothering you currently. For example, when I lost my retainer when I first had it, that night I dreamed that my teeth were moving and it was extremely painful in the dream. Hope this helps.