Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain the symptoms of strange smell of smoke through nose that others cannot experience and headache seems consistent with a condition known as
Phantosmia..
It can occur due to a number of conditions like
nasal infection and polyps, migranes, Oral and dental infection,
smoking habit, condition related to Nervous System like Parkinsonism, Alzimer's Disease, Stroke,
head injury etc..
I will suggest you to wait for her MRI report so that the physician can evaluated it as per the cause and will help in diagnosis and treatment can be planned accordingly..
As of now you can do saline
nasal irrigation, steam inhalation with few drops of Eucalyptus oil in water,chew flavoured sugar free chewing gum and limit intake of high aroma foods like onion and garlic..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.