im 22 years old man, how used to smoke for 7 years i quite smoking2 month ago. but month ago i drunk a bottle of whiskey and i smoked a lot that night. i felt breathless for once went out to breath and everything was fine before i went to sleep i was vomiting. and since that day i have chest pain and bad taste in my mouth . went to the ER 2 times done chest x-ray, 2 ECG's, and 2 blood test all came fine but i steel have the pain and im scared to death that there is smoething wrong with my lungs . i don't feel breathless but sometimes discomfort, my stool kind of orange, no cough i'm not sweating. Do you think that i have lung cancer? is the chest x ray enough? plz help