I have been using a CPAP for several years and it has changed my life for the better. Since I started using it, I have developed a pain in the back of my neck at the base of the skull. I went through physical therapy for it but it didn't help. I have tried wrapping the bottom strap of my headgear with a soft cloth, but it hasn't helped either. I was wondering if anyone else has had a similar problem and how they solved it.