I Have Trouble Breathing That Doesn't Improve With Inhalers. I

I have trouble breathing that doesn't improve with inhalers. I do feel better when I force my lungs with high intensity cardio exercise. I had h1n1 in2010. It feels the exact same way. Like I'm suffocAting
I also have hemochromatosis and ferritin was up to 500. I wonder could it be the iron in my long tissue