You don't mention whether or not you're on a cpap or a bi-pap.

With or without treatment I've never had pain on awakening. Mine is more feeling "shaggy," headachy, and brain foggy.

If you've not had a sleep study, you should. One common symptom of sleep apnea is snoring.

Bottom line, I think, is that pain on awakening should be checked out.

Sorry I could not be of more help.
Mavis