I have used CPAP because I was falling asleep in the car and work. Testing showed mild sleep apnea but I used it for 4 years at 8mmg of pressure. Now falling asleep after eating or sitting down to work on computer. Fell asleep today talking to colleague online. As a kid I would always daydream at school.
Symptoms you are describing mat be suggestive of absence seizures. . A type of epilepsy.....get EEG done (and ask technician to do EEG with hyperventilation). We should rule out this treatable and not very rare disease... Continue CPAP for apnea.