Our expert says:
I am definitely not an apnoea expert, but it seems as if with Bipap the inspiratory positive airway pressure (IPAP) is higher than the expiratory positive airway pressure (EPAP). The degree of IPAP-to-EPAP difference provides pressure support to assist with breathing. It sounds as if your machine also wakes you up when you stop breathing, so I think it is probably more than just a monitor. I also found the following that may be interesting for you:
Patients with high-pressure requirements may benefit by elevation of the head end to 45-60°, which dramatically decreases their pressure requirements.
Several different treatments may help i.e. acetazolamide (Diamox), sedative-hypnotics (Zolpidem), Theophylline.
Have you seen a pulmonologist?
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