No need to.worry but be cautious
Thanks for choosing health care magic for posting your query.
I have gone through your question in detail and I can understand what you are going through.
The symptoms that you are having is called olfactory hallucinations
. The most common reason for such a symptom is nasal pathology like infection or scab or an ulcer. This causes altered smell.perception as in your case. This requires careful nasal examination.
The next possibility is a seizure disorder
. The siezures arising from the brain from the region of brain which perceives smell can lead to such episodic strange smells. This can be diagnosed by getting an EEG done.
The third cause, the reason for which I use the word caution is, intracranial malignancies/ tumors. You are right about the saying yhat some people smell cancer before it comes. Intracranial tumors
compress the areas of brain as they grow leading to these symptoms.
But at this stage there is no need to panic. Just respond appropriately.
You need to get a
1. ENT consultation.
2. EEG TEST
3. CT / MRI
of the brain.
Hope I am able to answer your concerns.
If you have any further query, I would be glad to help you.
If not, you may close the discussion and if possible you may rate the answer for me, so that I get a good feedback.
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Wish you good health,
Dr. Srikanth Reddy M.D.