Hi, I am suffering from short breath or that I cant get enough air when I go to sleep and sometimes after I wake up like tonight. Most of time when I am asleep I feel I can't breath deeply enough and I breath through my mouth. Sometimes , like tonight, I couldn't get enough air even when I was awake and took breath from my mouth. I do not cough sneeze or have a runny nose. and I feel like I want to enlarge my nose holes to take more air from my nose. I am a regular smoker, 23 ys old.