Can teenagers get lung cancer?

4 weeks ago i got a bad case of bronchitis,. it got better so i thought but the cough never went away, lately iv started coughing up blood occasionally too when i cough, my chest is also feeling really tight all the time and i feel really short of breath a lot; iv booked a doctors appointment for later this week however my friend said it could be some sort of lung cancer?? could it be?? :/