I deal with anxiety and paranoia pretty regularly, but sometimes when I’m in a seemingly okay mood with no stressors, I will get this feeling that something is wrong but it lasts literally 3 seconds max. It feels like it paralyzes me snd I’ll usually blurt out  “fuck”, “oh my god”, or do some sort of weird twitching thing. It happened in the car with a friend and he was like  “What was that?” and I said, “Do you ever get that feeling of impending doom that overcomes you but then it goes away?” He just looked at me like he felt bad for me but was also sort of horrified. It’s not something I see many other people mention either.