I have a similar pattern of experience to you. Reading what you said about these 'states' having a different set of beliefs about yourself, to me, is tending towards DDNOS on the dissociative spectrum of disorders. There's no reason to be fearful of that btw. In fact ppl at the higher end of the spectrum often have a better insight into what's happening in their minds which ultimately helps with recovery. And there's no reason to be fearful of having DID either. It's far better to know exactly what you're dealing with than not. It also means you can aim more specifically at the people you want to work with to help you heal.
It's great you can see these different 'parts' of yourself and how they react in the world. Becoming aware of what's really going on is a huge benefit with these disorders. Without awareness, you have nothing to work with. Over the years, I've talked to my therapists and friends a lot about awareness and we've talked a lot about how to gain awareness - by simply being curious - curiosity without judgement.
