OK, I threw this out on the Respitory forum awhile back and have done some research on this. Unlike most things I'm not freaked out by this, just wondering about it. I'm not sure when it started but it seems to always happen, I get this smell in my nose that happens when I have heightened anxiety, stress, work out, etc. I wouldn't call it ammonia, it is more like mediciny..almost like a powder or talc. I read somewhere that a sign of anxiety could be this. The only stuff I found was on ammonia smells and most were talking about kidney problems which caused it on their body or breath or people sweating it out when they work out. This is only in my nasal passages and is almost like my nose burns, clears and the smell. Anyone experience this when fearful, anxious, panicing, etc?