Look, ur smoking and this is dangerous, first when u smoked the nicotine made effect, definitely you will keep smoking or you will have trouble, you will be crazy ok? Let's return to the point. Well if 20
People smoke 15 of the 20 will have lung cancer. This is more than 50% well to be more sure if you lung cancer, you'll have trouble with breathing it will be harder, if you feel you have the cancer go quickly to a doctor, cuz I am really sure you wanna lose it, you know that the lung lives, and if it dies you can't live with one happily, you will have trouble with breathing and etc. Pls ask someone in your family to take the smokes out of the house, once you stop smoking for a month you'll get used to it. Then go breathing fresh air to clear your lung 100% from the smoke. You need to see if you have cancer, cuz it can transfer to any other organs, it can go through ur bones and that causes you pain, it can go through anything, it's cancer, it can lead you to death if you don't fix it quickly, cause if the cancer be more than 4 cm, i don't think you can cured. Pls go to a cancer doctor to check you.