Definitely make an appointment with the place that sold it/set it up for you.
Also, have you ever been to a "sleep clinic" at all? That's where they will keep you overnight (with electrodes glued to your head and such) to observe how you sleep. If you have access to this kind of service, it might be worthwhile trying to get a sleep study done... but first see if your CPAP provider can maybe tweak the settings, fit, style of mask, etc., or offer you some other tips or assistance on using it.
Goal 1 - break 200 (46 pounds lost)**DONE**
Goal 2 - leave obesity behind (BMI 29.9, at 185#) **DONE**
Goal 3 - BMI = Normal (154# or less)
| current weight: 164.0