Loud wheezing whistle like noise when breathing in ? i'm a smoker no asthma what could it be thanks no chest pain or cough just loud noise

See your PCP: Noisy breathing comes from disruption in the otherwise smooth flow of air in your airway and lungs--like the last bit of milkshake sipped through a straw. Disruptions can be caused by simple mucous or more insidious things. First concerns: narrowed airway from inflammation (asthma?), infection or cancer (after all, you are a smoker) need to be ruled out. See your doc asap to be sure.