Co- consciousness is where a alter is out but you are aware of that and not losing time.
Everybody has parts but alters are parts that have dissociated.
Fragments only hold different pieces of things. They may be limited in what memories they hold or how distinct they are.
Yes, there are degrees. Some people may not do much switching or losing time. Some may have had major surgery and dont even remember.
Hearing voices is like if I heard someone say its dark but it was coming from outside of me like hearing someone speak to me thats not there. With DID they are coming from within you.
I told my mother and my sister. I have not told my dad yet.