I don't know if I suffer from Sleep Apnea or not. I do know I snore like a freight train and wake up several times during sleep. Combine this with working deep nights and trying to get quality sleep during the day light hours leaves me feeling tired most of the time.
Any time I have time off my sleep schedule is all kinds of whacked out. Any time after about noon time and my body feels like it wants to go to bed. I also struggle with falling asleep really early in the evening and waking up in around 3:00 AM when I'm taking time off work.