It's just occurred to me that my sense of smell wasn't like this for the whole of my life. A few years ago it became apparent that my sense of smell was much more sensitive than most people's. I smelled a very minor gas leak the moment I walked into a room and was told it was my imagination because no one else could smell it. As the smell grew stronger over the next few days, other people started picking up on it and it turned out there was in fact a gas leak. While that is quite a useful thing, I find I am incapable of being around anything malodorous. I'm struggling with certain parts of the housework where smells are involved (old food and that kind of thing) because as soon as I smell something bad I start wretching over and over, it's like it hits my stomach immediately and then I can't control the wretching. I'm having to make my boyfriend do all the dirty work around the house because I can't bear to be around anything with a smell.
I'm pretty sure I used to be able to cope with bad smells without the nausea and wretching, so is it possible this has something to do with anxiety?