When I turn my blinker on the dash lights dim at the same time as the blinker.
This just started happening, is there a short somewhere or something I need to do?

 

This can be caused by bad grounds or a weak battery too. Put a digital multimeter on the battery posts while it's doing this to see if the voltage is dropping in unison with the lights blinking.

A short usually results in a blown fuse or melted wires. I have heard of a blown fuse causing a backfeed problem. Have you checked your fuses?