Blinker light problem

I have Chevy Lumina 1990 V6 3.1L. First - when I turn on left or right blinker it light but not blinking, Second - when I turn on headlight the blikers is lighting permenently but they are turns off, Third - my rear left blinker is not working but the lamp is good, Fourth - when I turn on headlights all indicater laps incide of the car is turn off including radio lights. There have something wrong with electrics, but I don't know what to do. Help me!!!

you have a bad multifunction/turn signal switch, VERY common problem with these cars.