for the last year on and off i smell smoke like some one is smoking a cigarette right next to me but no one in the house smokes or ever has . i find it very irritating and can not for the life of me figure out why i smell smoke all of the time.

Hi Anon,

Welcome to EmpowHER. Many people are sensitive to certain smells, but in an olfactory hallucination (phantosmia), you detect smells that aren't really present in your environment. Phantosmia most often occurs as a result of a head injury or upper respiratory infection. It can also be caused by temporal lobe seizures, sinusitis, brain tumors, migraine, Parkinson's disease and stroke.  You might want to let your doctor know of your symptoms, so he can find the right treatment for you.

Daisy