Is a big trigger for anyone's anxiety existential/death crises? Is that common? 

The more I think about it, a lot of my anxiety is in a grand scheme about life having no meaning. I go in circles with this every night and I can't sit with it in a way that gives me solace. I become so terrified of being alive and existing, then not existing, and it's part of a larger never gonna know or understand what it's all about. Just like this eternal futility... I feel it all the time in different strengths. Life having no meaning doesn't even give me a "fuck it" attitude, it somehow does the opposite. Thinking about this too deeply is also the only thing that induces panic. I have a constant uncomfiness of existential dread. I feel like this has to be so common. Isn't this a part of being human?