1999 Pontiac Firebird headlights

Sounds like your turn signal flasher could be faulty. However before you replace the flasher, check your fuses. If they are ok, check the wiring for loose, or open connections. If no problems are found in the wiring, replace the flasher. The flasher is a small canister shaped unit located under the dash.

As for your head light issue, the motor has gone bad. Replace it with a new and you should be okay.