I think Pete Walker is the only person talking specifically about emotional flashbacks. My ex T and I called them '90/10' reactions, where 90% of the emotional crisis was the past and 10% current. She introduced me to the concept of 'emotional flashback' (but couldn't remember where she had heard the term). We sort of defined what they are as I went through them. When I found Pete Walker's information (https://www.psychotherapy.net/article/complex-ptsd), my experiences so directly matched what he was talking about that it was shocking. He could have been describing me.