I have been using the oxygen for just over a week now and what a difference it has made. I have to trial cylinders and a portable concentrator, so off we went to Devon with both last week and I practised. I can't believe the difference that a comparatively low 2l/m has made. I have been walking a bit further each day and enjoying it. Not only do I feel better but the family have said how much better I look. I am only supposed to use it when I go out, but since even relatively simple indoor jobs can be quite difficult too I shall have to talk about that. So nice not to have all that back and chest pain. I have had one or two curious looks but a lot of kindness. One little boy asked my husband what I was wearing that tube for. Peter told him I was practising to go to the moon! What fun, like something out of Eagle, for those old enough to remember Dan Dare! I am still waiting for all the tests at the Bristol Heart Institute and also cataract surgery, but at least I have made some progress, thank goodness. The holiday was lovely too!