I know when I am heading towards bad news... biggest tip off is when I stop wanting to be around people, and find myself rushing everywhere just so I can be alone. I guess that's the depression pattern tip off. For spacing out, I start to feel the urge to curl up into a ball on the floor specifically, or I notice that I start to feel halfway in my body halfway elsewhere in my mind. For total meltdown I feel tension everywhere in my body, my jaw clamp shut, and super worried about nothing and everything.

hypervigilance, fog, depression I think is actually the best way I could articulate my pattern for PTSD as a whole though!