No sound after installing iOS 8?

So this might be a stupid question, but I installed iOS 8 on my iPhone 5s on Wednesday and ever since I have had no sound on my phone when using apps such as YouTube. When I play music on my regular music app there's no problem. Any suggestions as to how to fix this? Any help would be much appreciated!

I'm having the same problem! Also, Even volume control is not working.
Airplaying from your iphone was easer on ios 7!
using iphone 5s

Check to see if your iphone/iPad's mute switch is on. (The side switch next to volume buttons) if that locks the rotating n, open the control center and a mute switch should be there

Hmm maybe press the volume buttun

Try this…
Check to see if by playing video (from youtube or FB videos), that the sound is enabled. If it is not, enable by turning volume up. Then check if sound in imessage or keyboard clicking is back…

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