Hi, I've been having a productive cough for a few months now. I get it once a day, about 1-2 hours after I've woken up and I have a chesty cough on and off for an hour. Recently I've taken up a really hard workout session that I do for 40 minutes, 6 days a week and my chest and sinuses seem to have gotten worse the more I do. As well as the productive cough once a day, I now have a constant feeling of mucus stuck at the back of my nose and throat, almost like I'm at the end of a cold, but I've not had the cold. My nose is dry, so I'm not blowing anything out and coughing only eases the mucus on my chest, not my nose. Any ideas? Is there anything I need to change in my bedroom? Also, the house has a lot of dust (all the houses on our road have the same problem) and we have parrots too, would any of those factor into this?