I'm sorry smilesandcries, everything in the dissociative spectrum requires work with a therapist specializing in this disorder. There are alters that are not fully developed alters with names and genders, but more like emotional alters or fragments.

Depersonalization is like having an out of body experience. You are watching yourself but not in control, like at a movie or theatre.
Derealization is when everything around you appears unreal.

DID is a disorder stemming from preadolescent trauma before the age of 5. A child's brain hasn't yet integrated so it dissociates creating alters. These alters then develop personality traits of another person. You can have from 2 alters up towards a thousand. There are like 20 or so alter types. Alters are basically the way the mind copes with situations that a normal person can handle on a singularity because they are integrated. DID is still seperate, so memories stay with the alter, hence missing time.

Are you missing time, like time holes in your day that are just gone?

I'm not bothered about MI. It makes me me. I'm unique. Besides, I got an alter that'll beat Ya up!