Thanks for clarifying this. I think information is power so am grateful for the feedback and information on this site. Maybe it's a function of my advanced age -- 74 -- and having had to deal with numerous health problems over the years, but I'm not leaning toward having any surgery unless it is absolutely necessary. I'm confused about the results of a breathing test I took which seemed to indicate my lungs are functioning within normal parameters. I may have misunderstood it but will get that clarified when I meet with the thoracic specialist next week and we discuss all my options, particularly non surgical ones. I have a feeling my paralyzed diaphragm is causing larger issues than my breathing problems, ie my stomach is way out of position, etc. I'll know more next week. Thanks again. Nancy