Hi Doctor I am 50 years old male ,have had asthma for forty five years,I am about 5,9 230 pounds,I have been having problems breathing but not asthma ,I ve been having trouble getting air in , but my oxy level is still good but yet very difficult to breath .my doc gave me larazapam to try to relax the muscle but most times doesn t work.They haven t been able help me ..any suggestion. Or what it is? Thanks Jim Stafford YYYY@YYYY