"under threat we do become very aware of the environment and less "in the mind", agreeing, but not more conscious": a signal from the environment may trigger a 'threat' reaction by a short-cut to the amygdala. Simultaneously, but a fraction slower, a second signal reaches the 'higher functions' (as Feralchild refers to it), which may cause us to become aware of it. So we pay attention to it, assessing if it is a real threat or a false alarm. So both things happen as a result of the trigger: we are alerted and a fraction later become more aware of the environment.
You may be right that at that moment we are less 'in the mind', because the emotional reaction is stronger and faster than the cognitive one. With a flight reaction this is likely to spiral negatively; however, my reaction is usually to become very calm (freeze), so I can think better before I act (fight), so that would be more conscious.
Your "consciousness [...] like spirits, entities, ghosts, demons, my mind in your mind, yours in mine, and other aspects considered 'mad', 'manic', 'psychotic'"
would have to be assessed from somebody's (non-)verbal behaviour and I don't have a model for that.
"And is there a threat unless we manifest it?": yes there may a threat without us being aware of it: my not being aware of some aspect of reality or not having a concept of it or of somebody else's perception may be dangerous.