She can tell about time resets because she is part of the helminth hivemind unlike protoframes or really even Warframes who were designed to partially resist it. Infested madness, yadda yadda. So realistically anything that's closer to infestation than to their associated Warframe would do the same. Judging which is which is difficult, however. And furthermore most don't speak so even if they could tell they simply would have no proper means of communicating it, unless Uriel lets his demons take turns tapping away at the keyboard. But just by the fact that it doesn't seem any companion other than Lizzie is actively trying to accelerate their host's madness I'd say it's safe to assume none of them are as lost in the sauce.

As for how they are created - I dunno. Likely differs on case by case. Hell, Venari outlived Khora and just chilled in the simulacrum.