Bringing up airway issues at the orthodontist?

I’m 15M, 185cm and 67kg. No current medication.

So im going to an ortho soon and I definitely have some jaw issues, aesthetic and functional. But I’m going with my dad, and my parents don’t believe any of my problems exist.

If I understand correctly having a narrow jaw makes your airway smaller. One of my nostrils is pretty much completely blocked and the other one is also kinda blocked. When I lie down to sleep, sometimes I struggle to breathe trough my nose. Should I bring this up at the ortho appointment? How would they react? Do most orthos understand that jaw development affects the airway and would they offer a solution, if my airway was too narrow?

I’m asking, because my parents think this is all in my head and pseudoscience, even though, by just looking at my profile, I clearly have some issues.

Profile pics: https://imgur.com/a/7UUeMZD