Corail Tombstone has an enchantment called Blessing that randomly gives you positive potion effects when you get hit by a monster.

Occultism has an effect by the id of occultism:third_eye which hurts your eyes to visually look at, but does allow you to see some hidden resources for early game progression, so it's classified as positive.

It's really unpleasant when you get hit by a mob and then when you attempt to track their position your view looks like a drunken mess worse than nausea.

It would be great if it was disabled through the unhandled_beneficial_effects setting in tombstone-common.toml