I've had this happen and i don't smoke cigarettes. I don't like vape so I make sure my water pipe has ICE COLD water and I change frequently so never feel the heat of the smoke and expansion. Also, dry vocal chords actually could play a part in this conundrum. PINEAPPLE JUICE works wonders and is a well kept secret for singers in order to kept their chords from drying out and going into coughing fits while performing in smoke filled rooms. Smaller hits help as well. However, a chest x-ray to play it safe is always your best bet. Good luck!