The symptoms you describe can sometimes be associated with abnormal activity in a part of the brain called the temporal lobe. This is the area of the brain that helps you interpret smells, and atypical activity in this part of the brain can cause a person to 'smell' something that is not present in the environment (i.e. not being detected by anyone else). There are many different things which can cause this finding, but seizures in the temporal lobe are one of them. It would be in your best interests to make an appointment with your primary care physician
right away to more fully evaluate these symptoms. He or she will likely want to know more about any history of head trauma; family history of neurologic disease; and any medications you may be taking. You may be referred to a neurologist
for further evaluation, and additional imaging of your brain (typically an MRI
) may also be helpful.
Your symptoms are unusual, but the good news is that with prompt medical evaluation your physicians can help get to the bottom of what is causing them.