Dear Rosie:
Experiencing Deja vu, as I understand it, means that let’s say you meet a person for the first time, but you have the strong feeling or conviction that you’ve known this person for a long time, or you visit a place for the first time, but you feel strongly that you lived there all your life.
What you described in your short original post: feeling that you are not supposed to be doing something that you are doing, feeling that you are doing something wrong, and remembering past relationships… these are not Deja vu experiences. Would you like to elaborate on these experiences?
anita