I have used my bipap every night since early June, after many years of battling with it. For info I have reduced lung function due to scoliosis, aortic leak and stenosis, and AF. As the summer went on my breathing got worse and worse, lung function had shown to be slightly worse, so put it down to that. But breathing continued to get worse, ankles swelled up which I put down to heat, but swelled half way up shin which has never happened before. Got so bad went to A and E on 13th Sept. Kept in for 9 days, not lungs, but did find on echo that valve may have got slightly worse. Waiting on appt with cardiologist at Brompton. Now here is the strange thing. The night I got home I was so tired I fell into bed and did not use bipap. Have not used it since, and my breathing, although still bad is nowhere near as bad as it was over summer and while in hospital. Has anyone heard of bipap creating breathing problems specially for those with heart issues. I'm thinking bipap may be making my heart work too hard. Does this all sound bonkers?