Hey, I have this persistent cough that has been going on for months. I get it about twice a day each lasting up to a few hours. I have to use a asthma pump when it happens as it’s serve I can’t breath and throw up as I cough so much. I have tried allergy meds, stomach meds to do with digestion and had a x Ray. None of which have helped it’s getting to the point where it is unbareable. Do you have any ideas what it could be, thank you.