I have been using a CPAP for about 5-6 years now and up until about 8 months ago I have never had any issues. What is happening is that during the night I am accumulating lots of gas. So much so that it is painful and I can't sleep. I have to get up and move around for 10-20 mins until the symptoms go away. I can only sleep for 5-6 hours max before it becomes too painful and by the time I walk it off, I am awake, so I am limited to that amount of sleep each night. I have seen my sleep doctor and they were no help. They reduced my pressure by a small amount and that didn't do anything. If I sleep without my CPAP this doesn't happen, so I know that it at least a factor. However, then I wake up from APNEA. Before I make another appointment I was hoping that someone may have experienced this and could offer some ideas that I could share with my doctor?