Depersonalization/Derealization or DiD?

The other night I was laying in bed doing something on my phone and all of the sudden whatever I was thinking about changed from my normal inner voice sound to something completely different. I was aware of it as soon as it happened and my thoughts about that were in the new sound. I was a little weirded out by it but I was OK for a bit, soon after was when I got really panicky.
That new sound became almost like a cluster of anger. It wasn't words I could make out just almost like a feeling and sound of arguing. That went on for a while and I felt like whatever IT was, was in control of me, like I was pushed back in my own self and I was struggling internally to take back control. It felt like there was someone else, that wasn't quite whole, in my brain with me.
I was aware of it going on the entire time and I was physically in control of my body, I even sat up in bed hoping that would help make it stop. I'm not sure how long this went on, probably not more than 10 minutes. I've been terrified since that it's going to happen again and I won't be aware of it.
I keep getting conflicting things when I try to look it up since I can't find this happening to anyone else.

I have had something a bit similar and it's usually happened when I'm trying to fall asleep. I haven't had my thoughts come through as a different voice but I've had random words/sentences feel like they are screaming at me inside my mind and they come on very suddenly and are so random, chaotic and like a cluster of things that I get really anxious and start feeling convinced I'm one level below auditory hallucinations. But I can't physically hear anything, they are obviously my own thoughts misfiring, I think it's a weird cluster of things my brain has recently processed like voices of other people, TV, radio etc. I also have it with images that come crashing into my mind, often with the sounds/voices (thoughts). It's so vivid in my mind that it scares me. It happens more when I have to sleep at work (health sector shift work). It's very on and off for me, I haven't had it in a long time. I think it might be from exhaustion sometimes.

DP/DR does not involve hearing voices or possession states. DID does involve these experiences. However, these experiences are much more common than DID. They occur very widely, in fact so widely that they often occur in the absence of any mental health disorder.

So at this point about all you can say is that you've had an anomalous experience. Do you have other kinds of anomalous experiences? You might want to keep a record of them in a journal. A pattern may emerge. It could be interesting.