Noun
parosmia (countable and uncountable, plural parosmias)
(pathology) A distorted sense of smell, often resulting in the apparent detection of non-existent smells which are mostly unpleasant.
Synonyms: (obsolete, rare) parosmis, troposmia
Parosmia any disease or perversion of the sense of smell, especially the subjective perception of odors that do not exist. Source: Internet
Parosmia isn't typically a permanent condition. Source: Internet