Hi, I'm a younger teenager and my mom smokes. Both of my grandmother's smoked while my parents were in the womb, so I think I may have developed an allergy to cigarette smoke. My mom still smokes and every time i get in her car, I feel like I'm choking and have to hold my breath for at least a minute. The thing is, she doesn't even know I know about her smoking, so I can't talk to her about it. I'm really scared because a close family member of ours is about to die due to lung cancer/smoking. Any advise?? Thank you :))