If your breathing is so bad a) have you not got emergency steroids and antibiotics, in case you have a chest infection? b) if you haven't got a chest infection, then I agree with Vulcan42 @ 12.10, perhaps you should be on Oxygen. I know many people with bad chest problems ( I belong to a local Breathe Easy group) and they appear better controlled than yours. I would strongly suggest that when this current Covid crisis is over, you ask your doctor to recommend that you see a consultant chest specialist at the hospital. The management of my condition was very much improved when I saw one.