My iPhone 8 randomly vibrates
When I’m working or just sitting here my iPhone will randomly vibrate. There won’t be any sound and no app will have a badge notification. It bugs me but I can’t figure out what it is.
You might have disabled badges for one or more apps. Look if there are new notifications in the notification history (by swiping down form the top of the screen). But you might also have disabled it for these Apps.
Got into the Settings App and then Notifications and check the settings for your apps.
My iPhone 8 randomly vibrates