You are telling me that when you turn the headlight knob 2 clicks clockwise and then pull it out, it does not pull out and additional light does not come out of the lamp housings? An your lamp out indicator is on and you don't think that you have a lamp out? When filaments go bad they can have a small crack. They can come and go for a while before being gone all the way. Close inspection with a magnifier will show the fracture in the filament, if you don't trust your dash indicator.

MP

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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra