I am currently fighting with my turn signals.

After my last off road trip my turn fuse keeps burning out. I replaced it and it works fine until I start driving and then it burns out. I replaced it and checked for shorts and could not find any. I reset some wires so they would not touch anything and the turn signals worked while parked but as soon as I started driving it burned out again. I am at a loss and have no turn signals. My hazard flashers work fine all the time so I don't get it. By the way the Chilton book sucks I couldn't find anything remotely referenced the turn signal circuit.
I also had a plug that went into the brake fluid resevoir that was unplugged, again no reference in the Chilton book. I plugged it in and everything still seems to work, except my turn signals of course.
Any help would be appreciated