You know, you're also living through a global pandemic - that's a lot of mental weight to deal with whether you're conscious of it or not. The virus is an invisible, borderless threat to your existence. That's a lot of "24/7 background" stress to exist in with no relief, which makes it difficult to handle other stresses that life throws up.

I wonder if perhaps it's the global situation of the last 2 years that's causing issues rather than the vaccine

It's been a real struggle for lots of people, mental health wise, and given the US health system, I expect it's difficult to get support.

Anyway, I hope things improve whether it's a "vaccine injury" or something else