<s>[INST] Hi there. Over the last few months I have been experiencing a strong metallic smell from my nose when exhaling. I have been going through some stressful transitions, and have had physical symptoms of stress/anxiety in the past. My main concern is the strong metallic smell. I have had a CT scan which ruled out any major issues, but this smell is getting worse. I had my nose checked to today and had the all clear. Is it possible this is caused by stress? [/INST] Dear serve understand your concerns went through your details. From the given details, it seems that the smell in itself is an imagination. Don't worry. Such things do happen during stress, and it falls under Obsessive Compulsive Cognitive disorder. Can be treated with CBT. For now just ignore it. If you require more of my help in this aspect, please use this URL. http://goo.gl/aYW2pR. Make sure that you include every minute details possible. Hope this answers your query. Available for further clarifications. Good luck. </s>