When i'm in a car with others i have to have a window slightly open
When I'm in a car with others, I always feel like I have to have my window cracked open a bit even on freezing cold nights because I feel like we're running out of oxygen. I don't know if that thought is because it's a small car or if I'm chlostraphobic or something, though I'm not scared of being in small places. Logically I know that we're not going to run out of oxygen but I can't help it. So is this normal? Does anyone else do this?