Hello Amos: I believe this is your first post here on PC. So... welcome to PsychCentral.

I have not had the kind of experience you had. And I'm not a mental health professional. So I can't offer anything in the way of mental health advice or diagnosis. (Mental health diagnosis isn't something we do here on PC anyway.) Based on what you wrote, though, this sounds to me like it might possibly be a dissociative experience. There's a forum, here on PC, dedicated to the subject of dissociative disorders. Here's a link:

https://forums.psychcentral.com/dissociative-disorders/

There is also a forum dedicated to the subject of bipolar disorder of course. Here's a link to that one too just in case you haven't already found it:

https://forums.psychcentral.com/bipolar/

And then here are links to 5 articles, from PsychCentral's archives, on the subject of living with bipolar disorder plus 1 on the subject of dissociation:

In-Depth: Living with Bipolar Disorder

The Biggest Lesson I've Learned in Managing My Bipolar Disorder

10 Small Steps You Can Take Today to Improve Bipolar Disorder

https://psychcentral.com/lib/buildin...olar-disorder/

https://psychcentral.com/lib/self-he...olar-disorder/

https://psychcentral.com/blog/the-ps...-dissociation/

I hope you find PC to be of benefit.