Sometimes after interacting with certain objects, the Sim might get a "Feeling Anxious About Object" moodlet. This goes away after a few hours but it can be alleviated immediately by Checking the object, which gives a "Feeling Calm" moodlet. Child Sims do not have the "Check Object" interaction, however.
They often obsess over their hygiene. They often desire to make their beds, clean dishes, bathe, and even wash their hands or brush their teeth a number of times.
Neurotic children constantly change positions and move in their sleep, but these actions do not affect how much rest they get.
Neurotic Sims often have special wishes like "Wash Hands 3 Times."
Neurotic Sims get stressed faster while working.
Using the "Console" interaction on a neurotic Sim will not increase relationship level like being used on other Sims.
Neurotic Sims flee from Bonehilda. They can't be in the same room with her and receive the "Scared" moodlet.
Neurotic Sims will always receive a "Horrified" moodlet if they set off traps (by walking over them or while trying to disarm them) or encounter bugs while exploring catacombs. Oddly, the moodlet does not appear if they encounter a Mummy.
Neurotic Sims get the "Scared" moodlet whenever they walk over a floor hygienator, even if they made it themselves.
Whenever Neurotic Sims look out windows, their neurotic trait flashes (in the Simology panel), indicating this is a neurotic interaction. This action can only be done autonomously.