MESSAGES DISAPPEARED ON IPHONE?! Help?

so last night, I opened my messages app on my iPhone. And when I went to click on one of my contacts messages. It froze, so I shut my phone off and when I turned it back on, a lot of my messages were missing & it's only showing the Text Messages (Green Message Bubbles) instead of IMessage Messages (Blue Message Bubbles) and I've tried a lot of things & I can't get them back… :( I'm sad. And it's only showing like my messages too, rarley HIS messages. This is what it looks like. Just please help me someone. And earlier yesterday I updated to IOS 9.2.1

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