headlight help

[truckdude239]

okay got an headlight problem i had no high beams so i replaced the floor switch which was sticking no high beams so i been driving for an month with just low beams till the other day when the driver side low beam burned out. so no biggie went to advance auto and got an set if sylvania halogen 60/40 watt bulbs part number h6024 okay i installed them yesterday and boom i got low beam and high beams. drove around for about 5 hours light night no problems. well tonight i start my truck after it had been sitting for about 4 hours turn the lights on and get ready to pull out of the parking lot and the driver side head light flashes (high beams) and goes out next the passager side all in an matter of seconds. okay no biggie i'l just use low beams click the lows on and bam the driver side low beam burns out so i drive home with just the passager side low beam. i'm checked the wireing it all seems fine it seems like the lights flitter when the are on? an i looking at an bad head light switch or volt regaoutor? thanks in advance