Terumi....

one thing you need to understand before I try to answer your questions....each location /country has their own standards for what is and inst dissociative disorders. I am in the USA not the UK (your profile says you are in leeds).

I will try to give you some general information hopefully at your level (teenager)...

in general dissociation is a cover word for lots of things like feeling numb, spaced out, day dreaming, feeling like you are not connected to your self or your environment (people places and things around you).

now this thing called dissociation is like walking along a road for a bit the road is straight then the road branches off into many different directions... the lowest one (the beginning of the road straight ahead ) is normal dissociation that every human being going through. then there are many dissociative disorders (kind of like side roads off from the normal path).

you can find out what dissociative disorders we have here in the USA in the link at the bottom of my post (signature line) your location may have different ones then we have.

here in the USA each mental disorder has a set in stone set of criteria (sort of like rules) of what is and isnt dissociation. everyone has their own set of ....symptoms...but everyone has to meet the same diagnostic rules to be called each of the mental disorders.

thats the short and sweet version to some of your questions....in general....to get more answers that are more focused on your situation you will need to talk with your psychiatrist.

now for the alters part of your questions....here in America treatment providers go according to the belief that DID type alters are created in very early childhood (the demographics here in new york were I am is under 5 years of age) how many and what those alters do depend upon how each persons internal system is set up to ensure that persons survival. some aters are stuck in time where they dont grow or change beyond the moment that they were created and others grow/change/evolve. each persons alters are different that way. how and when and whether an alter has the ability to grow/change/evolve depends on many different factors such as the persons cultural background, the trauma they went through, what was needed in order for the person to survive.

Again I cant say whether you have alters or not and what kinds only your psychiatrist can say that. what I can say is that here in america we have special tests to find that out. maybe you can as your psychiatrist for some tests too and ask your psychiatrist whether you have alters or not.

your question of what if you develop DID now well DID doesnt develop like at age 16. if you have DID its something that has been there since before you even started kindergarten.(According to USA mental health statistics on known cases of DID) its not something that just appears when you are a teen ager like a pimple.

as for who and what the alters are again that depends on many factors like what type of trauma, the persons cultural background, what that person needed in order to survive that trauma....gosh there are so many different factors that come together to determine what and how that alter was created, what their jobs, purposes, reasons for being was. only you and your treatment providers can answer whether those things you posted could happen with you.