It’s used legally for medical reasons, but I’ve heard nothing as to the effect it has on the lungs. Is it worse or the same as cigarettes?

I’m 16, I’ve smoked about 8 months, only about 1 or 2 cigarettes a day. I recently quit for good, but lately I’ve been having a dry cough and my chest will hurt a little sometimes. Idk if I am being over dramatic but is this signs of lung cancer?

My friend has been smoking for 40 years and has a smokers cough in the morning. He says it is not possible to get cancer from pot because cigarettes have all those unnatural additives that cause cancer.Is this correct?

How long would a stage 4 lung cancer patient survive? Especially considering the fact he still smokes cigarettes.

I’ve smoked about 20 something cigarettes in the entire 15 years of my life. I’ve had these small pains on my ribcage area for a few days now but they’re not really THAT painful.. and i’ve lost my appetite a bit, but i still get hungry.. I’m really scared though, but no one in my family has had lung cancer.

So last week I accidentally smoked two of my sister’s cigarettes. How long until I get cancer in my lungs?