Well dissociating though depersonalization and derealization as I've heard can involve seeing and hearing things. I could be psychosis but you also say that it happens when you depersonalize so it might mainly be that. C-ptsd can involve hearing and seeing things hings mings lings kings fings(please ignore rhyming and nonsense sentences). Depression and DID can involve theses things. It doesn't mean it's fits kits mits rits psychosis. I hope that helps.