Is it likely, that the small Brown moths ......?
Answers:
They are finding their way into your house somehow. Are the screens in your bathroom intact? How about the screen at the top of the exhaust fan?
Good luck with your problem.
Other answers:
do you have a bird?
I have a parrot and now I have the conclusion they come from the bird food.
do you have a bird?
I have a parrot and now I have the conclusion they come from the bird food.
juice
If they come in the night time then maybe the light is attracting them