My mom's brother and sister are both at a normal weight and they both were diagnosed with sleep apnea. Thankfully for them, surgery worked. I'm a big chicken when it comes to surgery and I am perfectly happy using my Comfortlite 2 interface. My doctor also told me that it's not specifically related to weight. (It can be, but not 100% of the time.)
I really like my doctor. He's a normal kind of guy.
Kimberly