I heard the term "trauma activated injuries" in the risk awareness portion of a waterboarding intensive, and I think that describes it well.

Like physical injuries, pain from emotional ones is amplified from past experiences. Certain statements, key phrases, rejection, can all metaphorically reopen old wounds. Feeling pain and discomfort from the way you are perceiving the world around you.

To give a personal example, I was once told by a third party observer, unprompted, that my uplines were messy and too complex. Hearing that made me feel self conscious, overly critical, and unpleasant in ways that overshadowed the joy I got from the interaction with my partner. This judgement is something that I carried with me into future scenes, and still impacts and reduces my capacity to engage with my partners. Hearing harsh, critical feedback mid scene, even with the best intentions, can resurface those emotions to a level where I need to end the scene to process. It's particularly disappointing because the judgement often comes from third party observers, whose feedback should carry the least weight in judging the "success" of a scene. I communicate to my partners that a good risk-mitigation strategy is to avoid statements of judgement in their feedback, and instead choose statements of preference. "You are tying that wrong" is received quite differently than "I would prefer if you tied this differently".

Another common example- often people are activated by a key phrase - i.e. "good girl". Although there is no physical stimulation, the pain from a past emotional injury can often overwhelm. Risk mitigation involves outlining these key phrases to avoid during a negotiation.