well I have my imaginary world within, a whole made of world with a cast of characters, that I have had since I was about 14 or so. I escape there at least every night. and then I have my alters from being DID and we carry on conversations a lot as well.......so you should be evaluated to see if you have an imaginary world or are the people you are having conversations with alters. to do this you really need to find a t who specializes in DID or you will be misdiagnosed and wasting your time.