I would never wish this problem on anyone, but just in case someone has experienced the same thing..
my '93 sidekick lost high-beams one night accompanied by a smell similar to a burning ballast. A few weeks later, the turn signals started clicking and buzzing; also accompanied by a burning ballast smell. The only way to stop the noise and smell was to unplug the hazard and turn signal fuses. After inspecting the wire harness, I find no burned wires. Also, the turn sig relay smells normal. What-the-heck?