iPhone No notifications after update

[iphoneproblems]

I have a 4s and updated a few days. Ever since, my phone will not light up or vibrate when I receive calls/texts/notifications. I usually keep my phone on vibrate and even when I put it on sound it still does nothing when I get calls/texts/notifications. Not sure why this is happening and can't get it figured out in my settings. Wondering if anyone else was having this problem/knew how to fix it? Thanks in advance!