I smell smoke constantly and nobody I spend time with smokes.  I have also had several attacks dizziness, which Ive seen an ENT and a neurologist for.  I have swelling of the 7th (?) nerve in my brain.  I have had a brain tumor previously and am wondering if my symptoms may be related to the swelling nerve?  The tumor I had was a hemangioblastoma and was successfully removed in 1998.
Hi, Thank you for posting your query. Your symptom could be an olfactory hallucination or cosmic, where an offensive/abnormal smell is experienced, when none exist in the vicinity. This could be related to your nerve swelling and tumor, especially if the temporal lobe was affected. You may discuss this with your neurologist. Please get back if you require any additional information. Best wishes, Chat Doctor. Ly/