Oh, I might add that I had to eliminate "ramp time" as i felt I was suffocating on the '4' setting so the machine now jumps right up to my range, which I believe is between 8-12. This allows me to begin my lousy 3-4 hours of sleep even sooner ...

I am experiencing the same symptoms after just a few weeks with my APAP. I never had headaches prior to therapy and now can't make it more than 3-4 hours with my nasal pillows/Resmed before awakening with a anxious, dull headache. Now, I can add insomnia to the my problem list ... This is hell. I'm ...