Tonight I got a deep, gut feeling that something bad had happened, or was about to happen. I can't really understand it, but it really shook me. I was pacing, saying "fuck, fuck, fuck" because I couldn't think of any other way to cope. Similarly, I've had times in which I feel anxious because of death, which is upsetting in the same way. I characterized it as looking up at a large meteor that is going to crash near me, and then I will be killed in the shockwave. What do I do??