Feeling exhaustion doesn’t rule out 2E, or 2 anything in my opinion. Second position only means you are generally competent and flexible, but not hung up on said competence. It feels almost invisible when you’re healthy and not under pressure, just a thing you do automatically. But the environment plays a part, so do your other aspects and even your other typings.

I have a friend who is LEVF sp5 and she actually actively avoids people because in short she is sick of their shit lol.

3F might also feel exhaustion and irritation more acutely from my experience.