Depersonalization and Derealization are the feeling of not being real--of being in a dream. It's a really yukky and common anxiety symptom of depression. When I was in the University of Chicago Hospital, I had this hideous symptom and was shocked to talk to other depressive patients and to find they ALL had this feeling of unreality. It is often sometimes brought on by marijuana use, but not with me or most of the patients I spoke when when I was an inpatinet (or so they said). There is actually website for people who have this disorder. It's NOT DID, but you do feel disassociated. For me, antidepressants and benzos took care of it. Once I felt less depressed, the weird "unreal" feeling didn't bother me anymore. It is amazing how many symptoms are a part of anxiety and depression.
