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What would make me smell things that aren't there?

I always have a strange smell. Well, not always, but a lot of time I will smell a bad smell like rotten food but there is no smell in the room or outside. Why would I smell something that isn't there?
I would highly suggest that you set up a visit with your primary care doctor at your earliest convenience to discuss this issue. There are several potential medical problems that could lead to this problem. First of all, I think it is important to rule out that you are really 'smelling something that isn't there.' For example, conditions like chronic sinus congestion, sinus infections, bad acid reflux, and gum or tooth inflammation or infection may lead to a bad smell that only you notice (since it would be coming from your nose or throat). Your doctor can perform a careful physical exam to determine if you have any of these conditions and, if so, recommend an appropriate treatment. Second, seizures can often lead to smelling smells that are not there; in particular seizures that come from the part of the brain that is called the temporal lobe can do this. If you have a history of seizure disorder or head injury you will want to discuss this with either your primary doctor or a neurologist to make sure this is not what is going on. Finally, rarely, disturbance in smell can be related to a very serious problem, such as a brain tumor; this is also something your doctor will consider and rule out.
This answer is for general informational purposes only and is not a substitute for professional medical advice.
If you think you may have a medical emergency, call your doctor or (in the United States) 911 immediately. Always seek the advice of your doctor before starting or changing treatment. Medical professionals who provide responses to health-related questions are intended third party beneficiaries with certain rights under ZocDoc’s Terms of Service.
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