Hi! I have had this happen to me a couple of times:
I have a sim with the active trait and when I start a new game, I load that sim from my personal gallery, change the traits to whatever else I want for the game (which would not include active) and I get the tense emotion at some point in the game, when I check why they are tense, it usually says "Not enough exercise (from active trait)" - which this sim no longer has.
It doesn't just happen with the one already created sim, but a few I have tested. Anyone else have this problem or know how to fix it?
Sorry if I have posted this in the wrong section.
Thanks guys!