phones vibrating but no notification

[Android Central Question]

my phone has been vibrating twice lately but when i look there is no notification. also i have noticed that im not getting a notification lately when i miss a call. i dont realize i missed a call until i look into my call log.

any ideas on whats going on and how i can fix it?

i have a galaxy s7 edge and its not rooted.

 

[B. Diddy]

Welcome to Android Central! Does this persist in Safe Mode? https://support.t-mobile.com/docs/DOC-28008