Has anybody had it and if so, how long? Because I am thinking that I may have it and I have been experiencing it for a year and a half non-stop and it feels like it is getting worse. I am at my pain threshold and am so frusterated now. Because I am not entirely sure that is what I have but it sounds so familiar when people describe derealization that I can't help but think that is what I have. I feel so out of it. Not to mention that one psychiatrist I saw believed and diagnosed me as "derealized"