But I'm also shutting down around people I'm fine with. Maybe I'm just fragile. Even little things that people do seem to cause great harm. I feel anxious being around certain people that I've never felt anxious around and have no real reason to be.

Hanging out with people separately would work, but I know them all through a local organization and I want to be able to continue being a part of the organization, which makes it difficult to control who else shows up to events etc.