My GP diagnosed me with Asthma 6 years ago after 3 chest infections. Currently I’m on sertetide, my question is how do I know for sure that I have asthma? I don’t wheeze nor have I ever done so. If it a very windy day I feel that breathing isn’t as easy as it should be, ventolin makes no difference at such times. I was a smoker for 40 years non smoker for 8, spirometry tests showed large lungs with normal results. My main complaint is constant throat clearing with elastic type mucus at the back of my throat, When I cough up mucus it always feels as though it comes from my throat not my chest. Could seretide cause excess mucus in my throat? Or do my symptoms sound more like post nasal drip?