So I have a alarm set on my instinct for 6:00am for every day. this morning around 7/8am my watch kept vibrating and making a alert noise. When i looked at my watch it had a X in the circle and in the bottom left it had "zz" I have no idea what it is and this is the first time it has happened to me. I have turned on do not disturb in sleep. Is it possible I accidentally pressed snooze on my watch this morning and that's why it continued to go off every 15mins or so?