Last night I totally lost it. I was about to have dinner when this pressure came out of nowhere and I started to scream and I felt the compulsion to throw things. It wasn't screaming like angry screaming it was screaming like an animal would before they get killed. I didn't feel I had any control over any of it. It went on this way until I felt the pressure subside a little which is when I started sobbing. I cried and cried having no idea what I was crying about, I just needed to release it I guess. And then I felt better. Not great but better. Still not a clue what any of this is about though.
(my italics above)
** triggering **
Caroline, granted I could be completely wrong about this. I wasn't there and I'm only reading what you wrote. That said, I believe this was either [A] a flashback of an actual historical trauma, a life-threatening one, containing much but not all of the trauma, because trauma is stored in pieces and so returns in incomplete parts, making it difficult to decipher, or [B] an alter -- or even yourself lost to amnesia -- communicating to you the rage stored from experiencing the trauma, possibly because s/he could not think of another way to get through to you or because expressing that rage at the time of the trauma was internalized or not possible.
Think back to what you were thinking of just before this happened. Did anything come into your mind? A thought? Did you dismiss it? Was there anything about the dinner, anyone who was around? Do you recall anything trigger-like? What happened just before the pressure began to build, what were you think about? What happened just earlier, the hours before it happened?
It does not just sound like letting off a little steam. I've read many biographies of people who are multiples and it simply parallels emotional outbursts/flashbacks too closely. It sounds like what I've read of people who have PTSD, reliving the event or the emotional rage from the event. I've experienced too many of these myself or witnessed them.
A couple weeks ago, a day after my mother's funeral, Adam relived a long life-threatening torture session that was so loud, my sister came to see if she could help and ended up witnessing the whole thing. It was triggered by her, because she just earlier had rejected hearing anything more about my or the mother's multiplicity, meaning hearing anything more about the abuse, some of which she endured. Given the death, I chose not to challenge her attitude, but Adam and/or the body felt compelled to break that stuffing and her denial. This was more of a flashback and it got the knowledge through loud and clear to my sister and to me.
A month earlier, I had confronted my ailing mother for the first time with her own DID and abuse of me and my sisters. To her credit, she did not disbelieve me and tried to imagine and understand, but kept slipping, literally every two minutes, into Mary Poppins denial. One day, after failing (I thought) to convinced or trigger her cruel alter, my abuser, into confirming everything for my mother's host, I saw a blip of anger and knew it was the monster. Something exploded on the right side of my head (a body memory of being struck with something hard), I staggered and backed away from the host in childlike fear, a flashback to what my child body did when the event happened. Her host kept asking if I was okay, could she help, what's wrong honey, how can I help you, and my body could only whisper "I am terrified of you" until I was backed up curled up on a bed against the wall. It was then she understood, really knew. "I must have been a real sh**," she said.
I experienced a rage similar to this when I watched TV and chose to interpret a scene where a father lays down next to his son and puts his arm on his shoulder, an innocent scene in the movie, as kind of how my relationship was with my father, even after Jack had told me, showed me what had happened. The rage and reaction that he filled my body with made it very clear never, ever to fall back into that fantasy again, even if that is how essentially it was for me because Jack had taken the abuse.
I've seen someone close to me who I strongly suspect is multiple too go through precisely what you describe, triggered by a violation which I knew was reminiscent of the disbelieved abuse, screaming, raging, but like a cornered animal fighting for its life, ending with her being crouched in a corner, looking back at the room, and hissing like an animal.
There are more, but I offer these here as possible parallels to your experience. If you can't recall any thinking before this one, be on the lookout next time. Try to keep part of you present as to what sense you have about why it's happening. Your body or an alter is telling you something but, being trauma, you won't get the whole thing together usually.
The better-ness you felt is the good stuff from having relived a trauma or the emotions from a trauma. In me, something always feels freed up afterwards, not gone, but looser.
Again, my take. - John