Throat irritation chronic. Choking.

Throat irritation is followed by coughing, choking and breath feels uncleared. Uncomfortable; may feel I could collapse, but settle. No chest pain/wheezing. Started in Bangalore in 2020 and continued in Jamshedpur. Some days are symptom-free. Mainly mornings, before 2 PM. I often feel sputum stuck in my throat and clear it. It is thick, sticky, white and hard to expel; similar material comes out during intense coughing/choking. Episodes sometimes occur outdoors/balcony, especially near trees; I may remain fine indoors, windows closed. May be more common in cloudy/rainy/humid weather. Today I woke well; after washing my face/mouth, throat irritation started. After tea, coughing/choking occurred, then settled. Morning tooth-brushing can trigger it; night brushing usually does not. Used inhaler once. Symptoms stopped in a closed AC restaurant; unsure if AC triggers. No blood/fever/weight loss. HRCT Thorax done Sept 2020; report shared. Main concern: breath does not clear, causing choking.