Hello I am experiencing some issues with what seems like my lungs, usually the left side of my left lung, and top of right lung, sometimes when breathing I am unable to breathe fully in from a short sharp pain in left lung, and the pain I get from right lung is usually very minor and mainly occurs when I lay down. Neither occurrences happen all of the time, they are rare, I have a feeling it may have to do with lack of exercise. What are your thoughts?