I wouldn't call something hypochondria just because I personally haven't had to deal with it. It's really great that you've never had this issue and I hope you

I wouldn't call something hypochondria just because I personally haven't had to deal with it. It's really great that you've never had this issue and I hope you never have to, but if we're going by anecdotes, there are several in this very thread from people who have. Diet can be a contributing factor, yes. I mention it a bit in this comment, with a link to a journal issue that talks about these issues in dogs and cats, including some information on frequency and contributing factors: https://news.ycombinator.com/item?id=29864189 https://news.ycombinator.com/item?id=29864189