Questions and concerns about a mental health issue that I am afraid not too many people have?

Is anyone here familiar with depersonalization disorder? It's a little bit strange because i feel like I exist in front of my face instead of behind it. My arms don't feel connected to my train out thought at all and neither does the rest of my body. I feel like a pair of eyes looking around or one big thought. Nothing feels like it is separate from everything else including my body walking past things or objects on a table feel all part of the same thing.