Headlights and headlight switch flicker when turned on.

[Logan Twitchell]

when I have my headlights on the switch and lights flicker. But if I just have the running lights on it won't do it.
any ideas ?????????/

 

[davelostmissing]

Rapidly many times a second or a periodic flashing?

 

[Logan Twitchell]

Rapidly many times a second or a periodic flashing?

periodicly flashes, then it feels like the car wants to die.......

 

[king kong]

when I have my headlights on the switch and lights flicker. But if I just have the running lights on it won't do it.
any ideas ?????????/

I would change the switch