question: I am being treated for allergies. Seems I have a chronic plugged sinus. Have also have a chest cold with a cough and very little coming up. Sometimes when I cough I feel very light headed - like I could pass out. My condition has been going on for years and has only gotten worse. I am on so many drugs - prednisone , inhalers, Advair, Breo, Spiriva, nasal sprays- mometasone,Nasonex, pills- Allegra,Singulair, and finally Xolair 375ml. I use a cpap and when I get up at 3-4am I cannot go back to sleep . My nose starts running and the cough starts. I take a sudafed and finally fall asleep. Tested positive for allergies- dust mites, mold, grass. What the heck do I have? Getting exhausted. Have thrown the kitchen sink at it- occasionally I get better for a couple weeks- then it comes back. Have not smoked in 8 years and have had no lung problems. Any thoughts?