I'd see about getting a scope done to see if there are any physical problems that might be there that can cause problems. It's a very simple procedure of putting a tiny camera down your throat to see the area and look for any abnormalities.
Yes, have tried Flovent, Xopenex and Advair based on diagnosis from first pulmonologist. None of it helped. After a second pulmonologist did a flo test, he ruled out regular and exercise-induced asthma.
Have you been tested for asthma?
If all tests come up negative, you can ask about having a Laryngoscopy done to take a look at the back of your throat, by your vocal cords, and so on to see if there are any physical problems there.