If you lack a significant other I recommend a sleep recorder app on your phone, of which there are several. keep the phone near you when you sleep, hit record, and it'll record your sleep noises.
(I'm also not overweight at all, yet have sleep apnea. Finding out I have sleep apnea and working on it changed my life.)
(I'm also not overweight at all, yet have sleep apnea. Finding out I have sleep apnea and working on it changed my life.)