I'm reaching out because I've been having some troubles and could really use some advice. I don't have a cough at all, but I've been putting a lot of effort into trying to bring up sputum, and thankfully, I've never seen blood in it. I'm not a smoker, but I do experience acidity problems. After taking Theo-Asthalin tablets for the past three days, I'm now feeling a heaviness in my chest. Could you help me understand what's going on and suggest what might be helpful for me?