I don't know if this is anxiety, but a lot of websites have been saying it is. Okay, so basically at random parts of the day it feels like I can't breathe or I'm not going to be able to breathe because the back of my nose that connects to my throat feels like it's closing up or there's something there. My stomach also feels very sunken in when I stand up and it makes me feel like I can't breathe even though my lungs are totally clear and I can. I can breathe out for very long because of it, though. I really need help because I don't really want to make it a bigger deal than it probably is. I also have dry skin that turned a grayish color on the sunken part of the front of your throat.