Sims that have full needs complain about digestive issues
Sims quite frequently complain that they need to do something with the toilet similar to when they have to pee but none of the behavior like holding it in. They hold their stomach, wave like they need attention and the thought bubble shows the toilet. Either sending them to the bathroom or using cheat needs make happy will make it go away. Frustrating because they're typically in the middle of engaging with another Sim.
This happens quite frequently. I've only seen with adults but my current families don't have a lot of kids over toddler stage.
Most recently I bought the life / death extension. I don't use and never used mods with my Sims 4. No other special function besides testing cheats.
Mac app.
I don't know how to trigger it so can't add an attachment. I'll try to capture it.