Edmel let the car cool and do the follwing cold.Start the car with the radiator cap off the car and see if coolant shoots out of the radiator.If it does head gasket.Look for bubbles in the coolant once its warmed up.If you got bubbles its also the head gasket.Usually if your HG is bad it will idle rough when you start it cold in the morning.Btw the laser should be running any day now.