Please help - I'm scared and I don't have any faith in my DME's advice or my sleep doctor.  The DME guy suggested that I switch from the black auto (Respironics?) to the ResMed Auto Set II because I felt like the black one wasn't working properly, and he said they have had trouble with them.  But my numbers were much better on the Respironics - AHI's under 5.  I've used the ResMed for one month and feel horrible - dizzy, weird, exhausted.  It is set the same as the old one - I think between 10-16, but the new one has EPR which is set on 3.  The leak shows zero but that almost seems too perfect.  The ResMed shows AHI is now 15 and sometimes I wake up with heart palpations!!??  I have not changed masks - I use the Breeze nasal pillows.  I have to figure this out on my own because I get no help from my sleep doctor and the DME is clueless.  Please help. Thank you!