Allergies, Anxiety, or Asthma?

I have had chest tightness and issues breathing since I was 10. I never told my doctor about it bc I just attributed it to Anxiety, though I never had anything to be anxious about when it happened.

Recently though I’ve started coughing, it started in August and I still have it. I thought I was sick at first but then a month past and...

It’s usually phlegmy.

Not sure what’s goin on, if it’s a post nasal drip or anxiety or smth.

Oh an in the colder seasons through spring I get a really bad dry cough that will not stop once started. It triggers my gag reflex and I have thrown up to if before.

Idk if this question belongs here but I thought I’d give it a shot.