It's been happening since I was a little kid, but sometimes I would and still get incredibly sharp pains in my left lung always. I also have type 1 diabetes and celiac disease I don't think it has to do with these though because I was only diagnosed a year ago and I have experienced this for the first time when I was about 10 and I'm 18 now. I also smoke but not cigarettes and not that often so what is wrong with my lung? It hurts so bad to breath when it's happening and it has lasted like a day and I'm getting concerned now.