Pressure Problems?

I am having problems sleeping! I am newly diagnosed and have a bipap with pressure settings at 18/14 (i think, or 20/16, have to look at my ppw). I have used the comfort setting on my machine because I tend to inhale longer than the machine allows (i think). With the time allowed, it's blowing when I am still exhaling. I keep getting so much air in my stomach that I am literally in pain before I can even fall asleep. I called the doctors office and NO ONE called me back and it has been several weeks now. The tech I worked with suggested (without actually telling me to do this) I try and change the pressues and start out lower and work my way up to my prescribed pressures. I am now at 12/8 with my comfort level at a medium time between Ipap and Epap and I was finally able to sleep for about 2 hours with my mask on! What I want to know is if this is a common issue, a problem with my jaw (i CANT breath through my nose because of my jaw position) or simply a mis-diagnosed pressue setting required? Until I can find a new doctor or get more info from my existing doc, I will need sleep. Any insight or help would be great!

Air in the belly is called aerophagia and it is common. Lowering the pressure helps reduce the chance of air going into the stomach.
Just have to use the least amount of pressure as possible that will still effectively hold your airway open..

You can evaluate how effective the lower pressures are with software. Most likely you have either a Respironics or a ResMed bilevel machine and if it says "BiPap" on it that would be Respironics because ResMed calls their bilevel pressure machines VPAPs.

You can use SleepyHead software to evaluate your therapy. See the links in my signature line.
Let's see just how effective the lower pressures are.
If you plan to hang around here please take the time to register and log in here at the forum and add your equipment to your profile like I have mine. It will help us help you better.