I had a diagnosis of DID (Since then all my alters have been integrated) and at the same time had many other mental and physical health diagnosis...here where I live this is called having dual diagnosis. when my internal system of alters was having trouble accepting any of my diagnosis's my treatment providers told me this is pretty normal thing....

most people even those without DID go through a period of adjustment where at first they are told a diagnosis, then they enter a stage of wow at least now I know what was wrong with me and then a denial stage where they are sort of in disbelief and questioning their diagnosis and eventually they move on to full acceptance and following treatment options...

if normal people without DID go through these normal stages from diagnosis to acceptance its understandable and normal for DID people to go through each of these stages and each of their alters within their internal system to also go through this process.

after my treatment providers explained it to me, I wasnt so concerned when ever I discovered one or more of my internal system of alters were at various stages in this process of being diagnosed, denial and acceptance stages. if normal people go through this then yea I will go through it too.

even now after all my alters are integrated and on a normal level I get a new diagnosis I go through these normal stages in the process. it is what it is and I move on.