I was really shocked to not find the DES in DocJohn's quizzes! Here's a link to a free one : Dissociative Experiences Scale

No one can be perfectly diagnosed, especially online, but you can take quizzes to see not only if your symptoms fit into a category, but also to see what is best for you in regards of treatment.

Feeling like you were many and not identifying with any one "personality" of yours can very much be an indicator of DID. But I wouldn't be afraid of any DX because the DX doesn't change who you are, it only gives you a direction for healing.