MySQL uses a lot of cpu - Queries per second avg HIGH

On one of our servers mysql is using a lot of CPU and puts up the load on the server to almost 2 at times.
When checking mysqld status I get this:
Queries per second avg: 134
Which is really high...but the thing is, using "mytop" doesnt help me one bit finding which user that runs all these queries.

What should I do to find the source of these problems?

 

 

 

 

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