I have a strange breathing disorder that I am suffering from last 3 months. During the day, I can breathe about 100% through one nostril and 50% through the other. It alternates between nostrils. I do not notice anything unless I hold one of my nostrils closed. This problem gets worse as I go to sleep.I can breathe about 100% through one nostril and 0% through the other. when I alternate sides, the obstruction alternates as well.