What does it feel like to have DID/MPD

Depersonalization disorder is indeed on the dissociation spectrum. It's not strange that you ask yourself if you have DID and try to understand what it is. Both are based on dissociation.

With depersonalization there is a split between "you" and what you "are". It's like what is coming to you from yourself doesn't feel like the real you. When we communicate with ourselves we do it with both thoughts/reasoning and feeling. If we just know something is fact, but we don't FEEL it, we will feel very strange. It's like the whole "me" experience is not coming through.

Like you people with this often feel strange even from childhood. And add the drug experiences that sort of added fuel to the fire and made this really flare. Risk factors for DPD can be trauma, not having direction from inside, being sensitive.

People with DPD feel fragmented but not in the same way as DID. With DPD it can be hard making a full person out of yourself because you are not emotionally connected to yourself. This can affect how you see your body as well, your body and your personality can seem foreign to you.

We don't hear a lot about DPD but it is a valid diagnosis. It exists and is very bothersome to the person having it.

For DID there are treatment plans but there isn't so much for DPD. There is no real ideas how to strengthen the emotional pathways to collect the mind as a whole. Some people say that thinking about self when having DPD can actually worsen it and there is some indications that modern methods like mindfulness also can. My guess is that no one is really interested in this disorder so a treatment plan has not been established. Shame really.