[DJ_BigC]

Your over thinking this.

Firstly LED fog lights or DRL’s in your case have nothing to do with your headlamps flickering or your bulbs failing. Second, to my best of knowledge each headlamp has its own separate ground, the odds of having two bad, loose grounds is very unlikely unless the car was in a severe front end collision and wasn’t repaired properly. Was your car factory equipped with OEM HID/halo style headlamps or did someone retrofit this kit in the car?

I recall the headlamp ballasts being non serviceable and are replaced with the lamp assembly... Don’t quote me on this but I recall the bulbs being available separate but everything else is serviced as a unit. If you used aftermarket bulbs chances are those bulbs are shit and went out on you. There’s also a good chance your ballast could be going out but without having spare parts to swap out and use as trial and error to diagnose your condition you’ll be spending money blindly.

This isn’t a high voltage issue from the ballast or a wiring issue within the lamp. I doubt you have two bad grounds causing the exact same thing intermittently from side to side. Your best bet is to find a quality replacement aftermarket bulb and ballast kit and swap both out and your condition will most likely be repaired.