Weird headlight flashing issue

Sometimes when I start my truck the headlights turn on and then turn off about 30 seconds later. Sometimes they'll turn off if I move the headlight switch from OFF to ON then back to OFF. Sometimes when I turn the key off the headlights will turn on and off 2-3 times. It doesn't do it every time, and I cant make it happen repeatably. There's no blown fuses, codes, or error messages on the dash. There is no evidence of rodent damage. Everything else appears to be working normally, including the lights. Anyone have any idea what would cause this?

 

Auto headlights?

 

Doesnt have auto headlights. Just started doing this like a week ago.

 

Halogen bulbs or led bulbs? How old are the bulbs? Are there DRLs that do the same thing?

 

Doesnt have auto headlights. Just started doing this like a week ago. Its LEDs. DRLs work normally. It's not flickering, it acts like the headlights are being turned on. Dash and radio dim just like if you switched them on manually