Am I having a case of mild empty nose syndrome?

lately I feel the air in my nose when i take a breath and it feels cool but not going into my lungs and now i am paying attention to my breathing i also feel my sinus and ears poppin and drainage and i feel my nose clearing up sinus plus i have gastritis when i lay on my back to sleep sometimes my mouth comes open i can sleep through the night only getting up to to go through the bathroom GAD SINUS SURGERY IN DECEMBER