I'm sorry you are struggling with this.

Yes, what you describe does sound sort-of like dissociative disorder. But I'm not a mental health professional. And we here on PC can't diagnose you.

For this, you'll need to see a mental health professional (assuming you're not already doing so.)
There is a forum, here on PC, dedicated to dissociative disorders. You might want to consider posting your experiences there. Here's a link:
https://forums.psychcentral.com/dissociative-disorders/
And then here are links to some articles, from PsychCentral's archives, that discuss dissociative disorders. Perhaps reading them will provide you with some useful information:
https://psychcentral.com/disorders/d...n-depth/?all=1
https://blogs.psychcentral.com/relat...-common-signs/
https://blogs.psychcentral.com/careg...onnected-self/
I wish you well...