Question: im a 54 year old male... been smoking a pack a day for the past 40 years. 2 seperate chest xrays were normal ,,, recently i had a ct thorax scan which showed mild centriloblar and paraseptal emphysema.. pulmonary doctor said my lungs and bronchials sound clear my 02sat was 99% and usually betwwen 95 and 99% when awake. but just before falling alseep it can drop and bounce around from 86% to 96% my pulmononary doctor said ill need a another ct scan in 2 years and another pft in 1 year. he didnt prescribes any meds or inhalers ..when i take a deep breathe i dont seem to get a satisfying breathe all the time even through i fill up and my stomach blow way up it doesnt feel like im getting a good satisfying breathe... sometimes i do .. can the mild emphsymema markings on my ct scan get better and go away or will they just keep getting bigger and spread and get worse ....