(EBN) More variety in "secondary" symptoms for ailments?

In my time playing with Enchanted By Nature, I've noticed that each of the ailments my Sims have experienced so far share a common "secondary" symptom: causing the Sim to periodically throw up. What if, to add more variety to the ailments and their gameplay, this was swapped out for a different symptom on some of them? (Or, for the ailments with more powerful effects, maybe they'd work fine with just their "main" symptoms?)

One idea for an alternate, secondary symptom of some ailments could be something like a specific need depleting a bit faster than usual; which need, exactly (energy, fun, etc.) could differ depending on the ailment, perhaps. If anyone has an idea for other alternatives, feel free to put them here!