Everyone is hyper-self-conscious of their own flaws, physical, mental, etc. Sometimes the smallest comments about those flaws can deeply affect our state-of-mind at a given moment and beyond. For me, even if it’s a joke or a verbal slip by another person, and even if I know it’s a stupid thing to get hung up on, that doesn’t really help. My brain is fixated on it because prior to that comment, I could have believed that this thing that I am self-conscious about only exists in my head, but that comment brings it out into the real world.
With that, I also should try to be more conscious about the things I say because everyone has their own insecurities, and no one needs to have them highlighted outside of their control.