I went to one pulmonologist and test showed bilateral dependent acetosis, moderate restrictive lung disease and he said the diagnosis was post inflammatory pulmonary fibrosis. I went to another pulmonologist for a second opinion and they said all the problems were because I am overweight and out of shape. I don't know who to believe. Right now I have 60% lung capacity. My oxygen stays around 92 most of the time. I used to be really active but I just don't have the strength or air to be that way as much anymore. I am trying to get out and walk everyday besides the walking I do at work. Anyone have any suggestions.