Obsolete: This article refers to an aspect of the game which has been removed. It is retained for historical reference only.
Retching is a status effect which prevents you from eating food or quaffing potions. At present, the only source of retching is the attack of a plague shambler.
Plague shamblers, the only source of retching in the game, were removed in 0.15.
Retching was added in 0.13