The medical is not an insanity check up (despite the Germanwings incident). The least you say or own up to and the quicker you are out of the doctors room = all the better for you. You passed and are certified for another year, no more, no less, desired outcome achieved.
Why create problems for yourself if there is no physical evidence being seen in a medical? I am pretty certain that everyone snores at sometime (especially after a few Vimtos), be sensible, why create doubt in a doctors mind? Unless a condition is really impacting your health to fly, then do what you need to do to pass the medical.
Safe flying and snore free nights. Disclaimer, I did the sleep apnoea test and passed, it's scaremongering and a waste of 11k AED for the test.