Hello dear, The symptoms as mentioned in your post suggest that you might be having Dysosmia. It can be due to: 1. The olfactory system (deals with the sensation of smell) is appreciating an odour when it is not present in the environment. 2. The olfactory system has become more sensitive to an odour that doesn t bother other people. The causes of altered smell can be attributed to: 1. Common cold or sinus infection 2. Exposure to certain chemical 3. Some medications like metronidazole 4. Depression, anxiety, etc. A proper examination of the nose & throat will be helpful in clinching the diagnosis. So, it will be better to consult an ENT specialist & get a proper physical examination done to rule out any organic lesion or any other cause in nose or throat. So that appropriate management steps could be taken. There is nothing to worry, you will be fine. Wishing you a Good Health. Take care.