About a week ago, I had an incident where I wasn't sure if something went through my nose or not, of course, it wasn't too late for me to start thinking about worst-case scenarios in my head. About 2-3 days after this event, I started to have a slight breathing problem and it has been going on for about 5 days. Sometimes when I breathe, I feel like I can't fully fill my lungs and I'm half breathing. But there are times when I can breathe properly, it keeps changing over time. The reason I'm sharing this here is because I know that stress/anxiety is related to breathing problems, but has anyone experienced this for such a long period of time? If anyone can talk to me about this, I'd be very grateful.