Thank you for posting your query.
Based on your symptoms, it is possible that you are having a migraine
attack with aura. Usually, migraine is associated with visual aura, but olfactory (related to smell) is seen in some.
If this is the first time, you should get evaluated by a neurologist
to find out the underlying cause, especially the temporal lobe
Please get back if you require any additional information.
Dr Sudhir Kumar MD (Internal Medicine), DM (Neurology)
Senior Consultant Neurologist
Apollo Hospitals, Hyderabad,
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