Images would help a ton, but as far as making eating difficult it should have no effect on her eating. The tube that you see in her mouth when she yawns or opens her mouth is how she breathes while eating. That tube is an extension on her esophagus that protrudes a little while eating so that she can properly breathe. As far as the nostril if seems to breathing okay other than the noises she makes I wouldn't worry a whole lot, unless the nostril closes completely then I'd probably go see the vet.