I have seen the sleep clinic at Oxford University who set the pressure, and the sleep clinic in Dunedin,
New Zealand who adjusted the pressure in attempt to reduce the aerophagia. I have been using it 'long term', and after 3-4 hours at night with it on, i get the symptoms of aerophagia, but also pain in the area of my kidneys. Concurrently i have high BP due to stress, other medications, incorrect diet and overweight, which is being treated with yet another pill.