What are some clear signs I may have sleep apnea?

Snoring, Wake up tired, wake up in the middle of the night gasping for air, tossing and turning a lot during sleep, falling sleep during the day, fill tired all the time.
Sleep Apnea. Most common type of sleep apnea is obstructive type, where there is obstruction of upper airways, leading to repetitive pauses of breathing during sleep, lasting 20-40 seconds each. Most common symptom is loud chronic snoring, especially when sleeping on your back. Also there is morning headaches, poor concentration, dry mouth or sore throat when wake up, & mood changes.