Fantosmia!!! I use to call that olfactory hallucinations. I noticed that during pregnancy my wife sense of smell increased excessively. To an extent where I won't be able to smell anything, while she could I think smell even micro levels of odor. I often often jokingly say, damn there is nothing I could find there, have you been all of a sudden gifted with heightened sense or smell or there is such thing as olfactory hallucinations. Turns out that females tend to have their olfactory senses on alert during pregnancy. So while that is not particularly "fantosmia", what I am keen to know if fantosmia is also commonly seen in psychiatric disorders such as schizophrenia or bipolar?