I'm struggling with a lot of phlegm in my throat every morning. I have asthma, so sometimes I get short of breath. I've been using nebulisation which helps, but it's not solving the phlegm issue. I've tried making myself vomit to clear my throat, but then I end up with an infection in my esophagus, and I feel like there's still something stuck in my throat after eating. It's making it really hard to eat properly. Can you help me figure out what's going on and what I can do about it?