Not a doctor obviously, but you can try recording yourself in your sleep and listen to how you breathe. If you hear what sounds like snoring followed by abrupt

Not a doctor obviously, but you can try recording yourself in your sleep and listen to how you breathe. If you hear what sounds like snoring followed by abrupt silence there's a good chance you've got obstructive sleep apnea and the sleep test should confirm it. At the very least you might find something else that's happening and give you a clue.