now I know the difference between the two. I've been experiencing derealization. this morning I experienced depersonalization. and it's worse. first I felt like I had no tongue. I started panicking and I woke up my boyfriend, but then my arms disappeared, and then I couldnt hear, and my head disappeared, and my body started disappearing. that's when I realized what was happening so I was able to calm myself down. I felt like I was almost floating above myself, kind of laying back. It almost could have been calming if it wasnt so terrifying because I didnt know what was going on at first. I couldnt feel my body at all.