iPhone won't stop vibrating.

I'm getting really sick and tired of problems with my 5c.

Now my problem is that my phone won't stop vibrating, I don't know what caused it...

Any fixes? I googled it and tried all the solutions but none of them work

I've tried

- Waiting till battery died then recharging.

-Hard reset it (with and without plugged into my pc)

And a couple others I can't think of..