I don’t normally wear deodorant, and afaik normally don’t smell (I know, but I’m married and have discussed this, agree it’s not foolproof, I also have a really good sense of smell). I also exercise a lot and subscribe to the idea that sweating pushes out whatever would normally feed the bacteria and make BO.

Anyway, the point I want to make is that when I am stressed or nervous I definitely find my sweat smells different (and bad). Unless it’s just some heightened awareness and I actually always smell that way but don’t notice, I’m pretty sure there is a real causal relationship.