Over the last 15 years or so, occasionally I get something that tells me it will help my lung function, sometimes this is in pill form, and once it was something called "Liquid Oxygen" I think. I tried these, because I was desperate to breathe "normally" and for one month I could try it out cheaper. I am tempted to do the same thing again, has anyone tried something like this? Also, even at my age (and many other medical issues I have) I am getting depressed that all I can do now is drive my son to work and sit at my computer all day, because I can do little else actively. I do not do a lot of walking, in fact, if I have to walk in a store, I don't go in that store. All I want to do is breathe like a regular human being.