You never know. I really didn't show the common symptoms of sleep apnea either. It was a rude awakening when I was in the hospital for the first time with surgery about 7 years ago. With Oxygon on that night my O2 stats were 78. Not good! Doctor sent me immediately for a sleep study. I never do things the normal way--I go into deep sleep within about an hour and I stay there all night. Not normal. My 02 stats for my sleep study went down to the high 50's. Definitely not normal. You just never know what can be going on in your body. It is best to check it out.