Are you sure they are alarms? Almost any notification can cause a sound/noise/alarm. This includes Calendar warnings, incoming text messages, phone calls, FaceTime, Reminders, and the list goes on and on and on… Wel,l you get the idea. Unfortunately there is no universal solution that will work in every situation and I have spent hours going through all the possible Notifications turning off sounds because of all the potential noise. One thing that can help is choosing different sounds for the different Notification types. It doesn't stop the ringing but at least you know what is trying to get your attention.
