You don't have your age present. Possible reasons for a chronic cough are different in different age groups. I get you're vaping as a hobby and something to occupy your hands.
That said, any cough that lingers, regardless of your suspicion of cause, should be evaluated by your doctor. The doctor should know you vape. If after an examination and reassurance that your is not a "physical' illness", you can turn your attention to perhaps altering your vape style. If I were to bet if this is related to your vaping, the juice you're using is the leading culprit. But please do take the advice of seeing your doctor first. There are many causes of a cough and getting medical advice off a forum isn't your best option.
That said, any cough that lingers, regardless of your suspicion of cause, should be evaluated by your doctor. The doctor should know you vape. If after an examination and reassurance that your is not a "physical' illness", you can turn your attention to perhaps altering your vape style. If I were to bet if this is related to your vaping, the juice you're using is the leading culprit. But please do take the advice of seeing your doctor first. There are many causes of a cough and getting medical advice off a forum isn't your best option.