Vaping 'fanatic' finally quits after two collapsed lungs 21 year old hospitalized in what doctor says was 'vaping induced lung injury' Stop the vaping, y'all. My son had to go to the hospital today because he was coughing up blood and had severe chest pain. The doctor told him he's lucky his lungs vaping: what's really in that cloud? Vaping may seem more harmless than other types of smoking, but many contain nicotine and chemicals that can hurt your lungs and keep you hooked.