Hey guys i recently noticed that my left hand parabolic headlight has randomly been marked on the plastic lens.

This just happened today but that there is a few big stain like marks (looks like condensation, but it doesn't go away) on the inside of the plastic lens.

I haven't blown any globes and im not running over wattage globes so that rules those 2 options out, Im thinking i may have to take the plastic lens off the headlights and clean the inside.

Does anyone have an suggestions regarding this issue?