I did a recording for his pediatrician, so she can listen to his weird breathing. She told me it’s normal because their airway is small. Something like that. It sounds like a horn sound. Sometimes he sounds like he has phlegm. She listed to his hurt and it sounded fine. She listen to make sure anything sounded off. No phlegm or anything like that. Everything came out great. But I still get bothered with his weird sound. It’s almost as if he struggled to breath properly. Should I be concerned or this is very common?