I just got the 11 pro max on Thursday. A few times now, an alarm has gone off. The screen is blank. I unlock the phone and it stops. I have no alarms set. It just went off at 8:52 am and then 9:07. It last did this around 10 pm last night. I’ve looked through notifications, alarms, everything I can think of! If it does it in the middle of the night, it might get smashed! Help!