if you have it thats how it feels, by that I mean DID affects each person a different way. there is a lot of stuff involved with being DID like..

the persons individual

coping skills
trauma(s) and types of trauma(s)
triggers
mentality
family dynamics
sometimes heredity is a factor for mental illnesses
make up/type of internal system of alters
environmental factors

and so much more.

because of all these individual factors that are part of a person, one person can feel completely normal and fine and another person feel depressed, and other person happy or cheerful or doomed, or any other number of ways a person can feel.

the only factors that are shared by every person that is diagnosed DID is the diagnostic criteria which is in non professional terms..

the person must have at least two or more alters that are a very special kind of alter, (here where I live these kind of alters are called "categorical", the dsm ( http://www.dsm5.org/ProposedRevision...on.aspx?rid=57 ) calls them "distinct" )

the person with DID must also have a special kind of memory problems that go beyond what is considered normal memory problems.

these alters and the symptoms of having DID can not be because of another mental or physical health problem and can not be th e result of drugs and alcohol.

the new diagnostics are also going to be making the distinction between those who have seizure problems like conversion disorder / epilepsy and other mental and physical problems that may cause the person to appear to have seizures.

they have also added the revision that the DID and DID like symptoms can not be part of cultural and religious practices because its now known that DID is caused by extreme trauma at a very early age and does not conform to just one type of religion or culture.

the persons alters can not be because the person as a child needed an invisible friend or was playing any other fantasy games/play.

the persons symptoms must have affected their life in social/ work and other functioning ways.