How to get me photos back when IOS 8 deleted them?

So I updated my iphone to the new iOS 8, it turns out I only have 300 pictures in my library when I had over 1,000. Please is there a way to get them back? The pictures werent saved on my laptop so I'm scared that I won't be able to get them back. Someone please help!

It turns out they still exist but super annoying.

http://mashable.com/2014/09/18/ios-8-where-is-camera-roll/

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